63+27+r+s=180

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Solution for 63+27+r+s=180 equation:


Simplifying
63 + 27 + r + s = 180

Combine like terms: 63 + 27 = 90
90 + r + s = 180

Solving
90 + r + s = 180

Solving for variable 'r'.

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

Add '-90' to each side of the equation.
90 + r + -90 + s = 180 + -90

Reorder the terms:
90 + -90 + r + s = 180 + -90

Combine like terms: 90 + -90 = 0
0 + r + s = 180 + -90
r + s = 180 + -90

Combine like terms: 180 + -90 = 90
r + s = 90

Add '-1s' to each side of the equation.
r + s + -1s = 90 + -1s

Combine like terms: s + -1s = 0
r + 0 = 90 + -1s
r = 90 + -1s

Simplifying
r = 90 + -1s

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