3(5s+7)-9s=3(2s+1)-5

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Solution for 3(5s+7)-9s=3(2s+1)-5 equation: 


Simplifying
3(5s + 7) + -9s = 3(2s + 1) + -5

Reorder the terms:
3(7 + 5s) + -9s = 3(2s + 1) + -5
(7 * 3 + 5s * 3) + -9s = 3(2s + 1) + -5
(21 + 15s) + -9s = 3(2s + 1) + -5

Combine like terms: 15s + -9s = 6s
21 + 6s = 3(2s + 1) + -5

Reorder the terms:
21 + 6s = 3(1 + 2s) + -5
21 + 6s = (1 * 3 + 2s * 3) + -5
21 + 6s = (3 + 6s) + -5

Reorder the terms:
21 + 6s = 3 + -5 + 6s

Combine like terms: 3 + -5 = -2
21 + 6s = -2 + 6s

Add '-6s' to each side of the equation.
21 + 6s + -6s = -2 + 6s + -6s

Combine like terms: 6s + -6s = 0
21 + 0 = -2 + 6s + -6s
21 = -2 + 6s + -6s

Combine like terms: 6s + -6s = 0
21 = -2 + 0
21 = -2

Solving
21 = -2

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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