(2s+5)-(s-7)=

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Solution for (2s+5)-(s-7)= equation:


Simplifying
(2s + 5) + -1(s + -7) = 0

Reorder the terms:
(5 + 2s) + -1(s + -7) = 0

Remove parenthesis around (5 + 2s)
5 + 2s + -1(s + -7) = 0

Reorder the terms:
5 + 2s + -1(-7 + s) = 0
5 + 2s + (-7 * -1 + s * -1) = 0
5 + 2s + (7 + -1s) = 0

Reorder the terms:
5 + 7 + 2s + -1s = 0

Combine like terms: 5 + 7 = 12
12 + 2s + -1s = 0

Combine like terms: 2s + -1s = 1s
12 + 1s = 0

Solving
12 + 1s = 0

Solving for variable 's'.

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

Add '-12' to each side of the equation.
12 + -12 + 1s = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 1s = 0 + -12
1s = 0 + -12

Combine like terms: 0 + -12 = -12
1s = -12

Divide each side by '1'.
s = -12

Simplifying
s = -12

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