Question

3z/10 - 4 = -6
someone help?

Answer 1

Answer:

$z=-\frac{20}{3}$

Step-by-step explanation:

$\frac{3z}{10}-4=-6\\\\\frac{3z}{10}-4+4=-6+4\\\\\frac{3z}{10}=-2\\\\\frac{10\cdot \:3z}{10}=10\left(-2\right)\\\\3z=-20\\\\\frac{3z}{3}=\frac{-20}{3}\\\\z=-\frac{20}{3}$

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