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ollegr [7]
3 years ago
14

What is 42= -7 × (z - 3)?

Mathematics
2 answers:
MArishka [77]3 years ago
6 0

Answer:

z=3

Step-by-step explanation:

42=−7(z−3)

Simplify both sides of the equation.

42=−7(z−3)

42=(−7)(z)+(−7)(−3)(Distribute)

42=−7z+21

Flip the equation.

−7z+21=42

Subtract 21 from both sides.

−7z+21−21=42−21

−7z=21

Divide both sides by -7.

-7z/-7=21/7

z=3

Agata [3.3K]3 years ago
3 0

Answer:

z=-3

Step-by-step explanation:

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