140+r=180

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Solution for 140+r=180 equation: 


Simplifying
140 + r = 180

Solving
140 + r = 180

Solving for variable 'r'.

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

Add '-140' to each side of the equation.
140 + -140 + r = 180 + -140

Combine like terms: 140 + -140 = 0
0 + r = 180 + -140
r = 180 + -140

Combine like terms: 180 + -140 = 40
r = 40

Simplifying
r = 40

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