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4 years ago

Solve –2.8(z + 1) – (3.5z – 9) = –31.6 for z. A. –1.32 B. 0.94 C. 6 D. –7.72

Mathematics

1 answer:

andreyandreev [35.5K]4 years ago

4 0

Answer:

$z=6$

Step-by-step explanation:

$-2.8\left(z+1\right)-\left(3.5z-9\right)=-31.6$

$-6.3z+6.2=-31.6$

$-6.3z+6.2-6.2=-31.6-6.2$

$-6.3z=-37.8$

$\frac{-6.3z}{-6.3}=\frac{-37.8}{-6.3}$

$z=6$

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3 years ago

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3 years ago

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3 years ago

PLZ help picture included

cupoosta [38]

Answer:

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Step-by-step explanation:

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