8+9r=170

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Solution for 8+9r=170 equation: 


Simplifying
8 + 9r = 170

Solving
8 + 9r = 170

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + 9r = 170 + -8

Combine like terms: 8 + -8 = 0
0 + 9r = 170 + -8
9r = 170 + -8

Combine like terms: 170 + -8 = 162
9r = 162

Divide each side by '9'.
r = 18

Simplifying
r = 18

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