20-6=7s+4s-9s

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Solution for 20-6=7s+4s-9s equation:


Simplifying
20 + -6 = 7s + 4s + -9s

Combine like terms: 20 + -6 = 14
14 = 7s + 4s + -9s

Combine like terms: 7s + 4s = 11s
14 = 11s + -9s

Combine like terms: 11s + -9s = 2s
14 = 2s

Solving
14 = 2s

Solving for variable 's'.

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

Add '-2s' to each side of the equation.
14 + -2s = 2s + -2s

Combine like terms: 2s + -2s = 0
14 + -2s = 0

Add '-14' to each side of the equation.
14 + -14 + -2s = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -2s = 0 + -14
-2s = 0 + -14

Combine like terms: 0 + -14 = -14
-2s = -14

Divide each side by '-2'.
s = 7

Simplifying
s = 7

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