8(r-10)=-120

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Solution for 8(r-10)=-120 equation: 


Simplifying
8(r + -10) = -120

Reorder the terms:
8(-10 + r) = -120
(-10 * 8 + r * 8) = -120
(-80 + 8r) = -120

Solving
-80 + 8r = -120

Solving for variable 'r'.

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

Add '80' to each side of the equation.
-80 + 80 + 8r = -120 + 80

Combine like terms: -80 + 80 = 0
0 + 8r = -120 + 80
8r = -120 + 80

Combine like terms: -120 + 80 = -40
8r = -40

Divide each side by '8'.
r = -5

Simplifying
r = -5

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