Question

42= −7( z − 3)
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Answer 1

You start off by distributing the -7 into the parenthesis.

After you will have 42= -7x + 21

After minus 21 by itself and 42

You will get 21

After divide -7x/-7 and 21/-7

Your answer will be -3

Answer 2

z = -3

Explanation:

-7(z - 3) = 42

Distribute -7 to both numbers inside the parenthesis:

(-7(z) - -7(3)) = 42

-7z + 21 = 42

Subtract 21 from both sides:

-7z = 21

Divide both sides by -7:

[z = -3]