54+s+21=180

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Solution for 54+s+21=180 equation: 


Simplifying
54 + s + 21 = 180

Reorder the terms:
54 + 21 + s = 180

Combine like terms: 54 + 21 = 75
75 + s = 180

Solving
75 + s = 180

Solving for variable 's'.

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

Add '-75' to each side of the equation.
75 + -75 + s = 180 + -75

Combine like terms: 75 + -75 = 0
0 + s = 180 + -75
s = 180 + -75

Combine like terms: 180 + -75 = 105
s = 105

Simplifying
s = 105

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