| 944 | Solving a mixed linear‑cubic system | Medium | linear equationscubic substitution | |
| 945 | Linear and cubic equations with a sum condition | Medium | substitutioncubic equation | |
| 946 | Quadratic‑type relations in three variables | Medium | eliminationlinear combination | |
| 947 | Quadratic forms with a linear constraint | Medium | quadratic eliminationlinear substitution | |
| 974 | Composition of Brass and Bronze | Medium | mixturesratios+1 | |
| 975 | Rowing Stream Times | Medium | word problemsspeed and distance+1 | |
| 994 | Pension Proportions and Service Lengths | Medium | VariationSimultaneous Equations | |
| 1305 | Homogeneous Quadratic System | Medium | simultaneous equationshomogeneous equations | |
| 1306 | Symmetric Quartic System | Medium | simultaneous equationsfactoring polynomials | |
| 1307 | System with Square Roots | Medium | simultaneous equationssubstitution | |
| 1308 | Symmetric Radical System | Medium | simultaneous equationssymmetric equations | |
| 1309 | Symmetric Radical System | Medium | systems of equationsradicals+1 | |
| 1310 | Homogeneous Quadratic System | Medium | systems of equationsquadratic equations | |
| 1311 | Simultaneous Quadratics | Medium | systems of equationsquadratic systems | |
| 1312 | Non-linear Equation System | Medium | systems of equationsquadratic equations | |
| 1313 | Quadratic Equations in Two Variables | Medium | systems of equationsquadratic systems | |
| 1315 | Symmetric Quartic System | Medium | simultaneous equationssymmetric polynomials+1 | |
| 1316 | Quartic Difference System | Medium | simultaneous equationschange of variables+1 | |
| 1317 | Quintic Difference System | Medium | simultaneous equationspolynomial factorization+1 | |
| 1321 | System with Cube Roots | Medium | simultaneous equationsradical equations | |
| 1323 | Square Roots and Negative Powers | Medium | simultaneous equationsnegative exponents | |
| 1324 | Radicals and Difference of Squares | Medium | radical equationssimultaneous equations | |
| 1326 | Reciprocal Square Roots | Medium | simultaneous equationsrational equations | |
| 1327 | System with square roots | Medium | simultaneous equationsradical equations | |
| 1328 | Quadratic and product system | Medium | simultaneous equationssubstitution | |
| 1330 | Linear and quadratic combination | Medium | simultaneous equationssubstitution | |
| 1333 | System of Homogeneous Quadratic Equations | Medium | simultaneous equationshomogeneous equations | |
| 1334 | Algebraic Fraction and Linear Equation System | Medium | simultaneous equationsalgebraic fractions | |
| 1342 | Homogeneous and Quadratic System | Medium | systems of equationshomogeneous equations+1 | |
| 1343 | Linear and Cubic System | Medium | systems of equationscubic equations+1 | |
| 1344 | Mixed Algebraic System | Medium | systems of equationsnonlinear systems | |
| 1345 | Linear and Quadratic Product System | Medium | systems of equationsquadratic systems | |
| 1347 | Three Symmetric Quadratic Equations | Medium | systems of equationssymmetric equations | |
| 1348 | Homogeneous and Linear Systems | Medium | simultaneous equationshomogeneous equations | |
| 1349 | Cyclic Product Equations | Medium | simultaneous equationsproduct of differences | |
| 1350 | Exponential Product System | Medium | simultaneous equationsproduct systems | |
| 1351 | Power Product System | Medium | simultaneous equationsexponents | |
| 1352 | Symmetric Product-Sum Equations | Medium | simultaneous equationsfactorisation | |
| 1353 | Bilinear Variable Systems | Medium | simultaneous equationsfactorisation | |
| 1354 | System of Three Variables | Medium | simultaneous equationssubstitution | |
| 1355 | Symmetric Cubic System | Medium | symmetric polynomialspower sums | |