a
![3(5z - 7) - 2(9z - 11) = 4(8z - 13) - 17 3(5z - 7) - 2(9z - 11) = 4(8z - 13) - 17](https://tex.z-dn.net/?f=3%285z+-+7%29+-+2%289z+-+11%29++%3D+4%288z+-+13%29+-+17)
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Step-by-step explanation:
this question's answer is z = 2
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