-7(r+7)=-42

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Solution for -7(r+7)=-42 equation:


Simplifying
-7(r + 7) = -42

Reorder the terms:
-7(7 + r) = -42
(7 * -7 + r * -7) = -42
(-49 + -7r) = -42

Solving
-49 + -7r = -42

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '49' to each side of the equation.
-49 + 49 + -7r = -42 + 49

Combine like terms: -49 + 49 = 0
0 + -7r = -42 + 49
-7r = -42 + 49

Combine like terms: -42 + 49 = 7
-7r = 7

Divide each side by '-7'.
r = -1

Simplifying
r = -1

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