r-15=70

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Solution for r-15=70 equation: 


Simplifying
r + -15 = 70

Reorder the terms:
-15 + r = 70

Solving
-15 + r = 70

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + r = 70 + 15

Combine like terms: -15 + 15 = 0
0 + r = 70 + 15
r = 70 + 15

Combine like terms: 70 + 15 = 85
r = 85

Simplifying
r = 85

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