-3(3s-4)-12=-3(6s+1)-4

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Solution for -3(3s-4)-12=-3(6s+1)-4 equation: 


Simplifying
-3(3s + -4) + -12 = -3(6s + 1) + -4

Reorder the terms:
-3(-4 + 3s) + -12 = -3(6s + 1) + -4
(-4 * -3 + 3s * -3) + -12 = -3(6s + 1) + -4
(12 + -9s) + -12 = -3(6s + 1) + -4

Reorder the terms:
12 + -12 + -9s = -3(6s + 1) + -4

Combine like terms: 12 + -12 = 0
0 + -9s = -3(6s + 1) + -4
-9s = -3(6s + 1) + -4

Reorder the terms:
-9s = -3(1 + 6s) + -4
-9s = (1 * -3 + 6s * -3) + -4
-9s = (-3 + -18s) + -4

Reorder the terms:
-9s = -3 + -4 + -18s

Combine like terms: -3 + -4 = -7
-9s = -7 + -18s

Solving
-9s = -7 + -18s

Solving for variable 's'.

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

Add '18s' to each side of the equation.
-9s + 18s = -7 + -18s + 18s

Combine like terms: -9s + 18s = 9s
9s = -7 + -18s + 18s

Combine like terms: -18s + 18s = 0
9s = -7 + 0
9s = -7

Divide each side by '9'.
s = -0.7777777778

Simplifying
s = -0.7777777778

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