7.8-2s=12

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Solution for 7.8-2s=12 equation: 


Simplifying
7.8 + -2s = 12

Solving
7.8 + -2s = 12

Solving for variable 's'.

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

Add '-7.8' to each side of the equation.
7.8 + -7.8 + -2s = 12 + -7.8

Combine like terms: 7.8 + -7.8 = 0.0
0.0 + -2s = 12 + -7.8
-2s = 12 + -7.8

Combine like terms: 12 + -7.8 = 4.2
-2s = 4.2

Divide each side by '-2'.
s = -2.1

Simplifying
s = -2.1

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