87+70+r=210

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Solution for 87+70+r=210 equation: 


Simplifying
87 + 70 + r = 210

Combine like terms: 87 + 70 = 157
157 + r = 210

Solving
157 + r = 210

Solving for variable 'r'.

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

Add '-157' to each side of the equation.
157 + -157 + r = 210 + -157

Combine like terms: 157 + -157 = 0
0 + r = 210 + -157
r = 210 + -157

Combine like terms: 210 + -157 = 53
r = 53

Simplifying
r = 53

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