Question

7(c - 12) = -21
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Answer 1

C = 9

Step by step:

7(c - 12) = -21

We divide both sides of the equation by 7

C - 12 = -3

The we move the constant, - 12, to the right hand side and change its sign.

C = -3 + 12

Then we calculate the sum

C = 9

Answer 2

Divide each term by 7 and simplify.

c−12=−3

Move all terms not containing c to the right side of the equation.

c=9

Explanation: