-3(3s-4)-12=-3(7s+2)-4

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Solution for -3(3s-4)-12=-3(7s+2)-4 equation:


Simplifying
-3(3s + -4) + -12 = -3(7s + 2) + -4

Reorder the terms:
-3(-4 + 3s) + -12 = -3(7s + 2) + -4
(-4 * -3 + 3s * -3) + -12 = -3(7s + 2) + -4
(12 + -9s) + -12 = -3(7s + 2) + -4

Reorder the terms:
12 + -12 + -9s = -3(7s + 2) + -4

Combine like terms: 12 + -12 = 0
0 + -9s = -3(7s + 2) + -4
-9s = -3(7s + 2) + -4

Reorder the terms:
-9s = -3(2 + 7s) + -4
-9s = (2 * -3 + 7s * -3) + -4
-9s = (-6 + -21s) + -4

Reorder the terms:
-9s = -6 + -4 + -21s

Combine like terms: -6 + -4 = -10
-9s = -10 + -21s

Solving
-9s = -10 + -21s

Solving for variable 's'.

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

Add '21s' to each side of the equation.
-9s + 21s = -10 + -21s + 21s

Combine like terms: -9s + 21s = 12s
12s = -10 + -21s + 21s

Combine like terms: -21s + 21s = 0
12s = -10 + 0
12s = -10

Divide each side by '12'.
s = -0.8333333333

Simplifying
s = -0.8333333333

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