s+21+34+78=180

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Solution for s+21+34+78=180 equation: 


Simplifying
s + 21 + 34 + 78 = 180

Reorder the terms:
21 + 34 + 78 + s = 180

Combine like terms: 21 + 34 = 55
55 + 78 + s = 180

Combine like terms: 55 + 78 = 133
133 + s = 180

Solving
133 + s = 180

Solving for variable 's'.

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

Add '-133' to each side of the equation.
133 + -133 + s = 180 + -133

Combine like terms: 133 + -133 = 0
0 + s = 180 + -133
s = 180 + -133

Combine like terms: 180 + -133 = 47
s = 47

Simplifying
s = 47

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