If 7a - 3b = 10b + 40 = -12b - 2a…

If 7a - 3b = 10b + 40 = -12b - 2a, what is the value of 9a + 9b?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #30128

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