2(9s+9)-9s=3(3s+6)-21

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Solution for 2(9s+9)-9s=3(3s+6)-21 equation: 


Simplifying
2(9s + 9) + -9s = 3(3s + 6) + -21

Reorder the terms:
2(9 + 9s) + -9s = 3(3s + 6) + -21
(9 * 2 + 9s * 2) + -9s = 3(3s + 6) + -21
(18 + 18s) + -9s = 3(3s + 6) + -21

Combine like terms: 18s + -9s = 9s
18 + 9s = 3(3s + 6) + -21

Reorder the terms:
18 + 9s = 3(6 + 3s) + -21
18 + 9s = (6 * 3 + 3s * 3) + -21
18 + 9s = (18 + 9s) + -21

Reorder the terms:
18 + 9s = 18 + -21 + 9s

Combine like terms: 18 + -21 = -3
18 + 9s = -3 + 9s

Add '-9s' to each side of the equation.
18 + 9s + -9s = -3 + 9s + -9s

Combine like terms: 9s + -9s = 0
18 + 0 = -3 + 9s + -9s
18 = -3 + 9s + -9s

Combine like terms: 9s + -9s = 0
18 = -3 + 0
18 = -3

Solving
18 = -3

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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