2(s-1)+s=7

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Solution for 2(s-1)+s=7 equation:


Simplifying
2(s + -1) + s = 7

Reorder the terms:
2(-1 + s) + s = 7
(-1 * 2 + s * 2) + s = 7
(-2 + 2s) + s = 7

Combine like terms: 2s + s = 3s
-2 + 3s = 7

Solving
-2 + 3s = 7

Solving for variable 's'.

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

Add '2' to each side of the equation.
-2 + 2 + 3s = 7 + 2

Combine like terms: -2 + 2 = 0
0 + 3s = 7 + 2
3s = 7 + 2

Combine like terms: 7 + 2 = 9
3s = 9

Divide each side by '3'.
s = 3

Simplifying
s = 3

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