-9r-7=110

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Solution for -9r-7=110 equation: 


Simplifying
-9r + -7 = 110

Reorder the terms:
-7 + -9r = 110

Solving
-7 + -9r = 110

Solving for variable 'r'.

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

Add '7' to each side of the equation.
-7 + 7 + -9r = 110 + 7

Combine like terms: -7 + 7 = 0
0 + -9r = 110 + 7
-9r = 110 + 7

Combine like terms: 110 + 7 = 117
-9r = 117

Divide each side by '-9'.
r = -13

Simplifying
r = -13

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