2s-78=12

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Solution for 2s-78=12 equation: 


Simplifying
2s + -78 = 12

Reorder the terms:
-78 + 2s = 12

Solving
-78 + 2s = 12

Solving for variable 's'.

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

Add '78' to each side of the equation.
-78 + 78 + 2s = 12 + 78

Combine like terms: -78 + 78 = 0
0 + 2s = 12 + 78
2s = 12 + 78

Combine like terms: 12 + 78 = 90
2s = 90

Divide each side by '2'.
s = 45

Simplifying
s = 45

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