-5-7(5-7r)=-89

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Solution for -5-7(5-7r)=-89 equation:


Simplifying
-5 + -7(5 + -7r) = -89
-5 + (5 * -7 + -7r * -7) = -89
-5 + (-35 + 49r) = -89

Combine like terms: -5 + -35 = -40
-40 + 49r = -89

Solving
-40 + 49r = -89

Solving for variable 'r'.

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

Add '40' to each side of the equation.
-40 + 40 + 49r = -89 + 40

Combine like terms: -40 + 40 = 0
0 + 49r = -89 + 40
49r = -89 + 40

Combine like terms: -89 + 40 = -49
49r = -49

Divide each side by '49'.
r = -1

Simplifying
r = -1

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