Question

3z/4+7/2=9/8
answer my question please

Answer 1

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$\frac{3z}{4} + \frac{7}{2} = \frac{9}{8} \\ \frac{6z + 21}{8} = \frac{9}{8} \\ 6z + 21 = 9 \\ 6z = 9 - 21 \\ 6z = - 12 \\ z = - 2$
$proof \\ \frac{6( - 2) + 21}{8} = \frac{9}{8} \\ \frac{ - 12 + 21}{8} = \frac{9}{8} \\ \frac{9}{8} = \frac{9}{8}$
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