(4s-9)-(2s+7)=

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Solution for (4s-9)-(2s+7)= equation:


Simplifying
(4s + -9) + -1(2s + 7) = 0

Reorder the terms:
(-9 + 4s) + -1(2s + 7) = 0

Remove parenthesis around (-9 + 4s)
-9 + 4s + -1(2s + 7) = 0

Reorder the terms:
-9 + 4s + -1(7 + 2s) = 0
-9 + 4s + (7 * -1 + 2s * -1) = 0
-9 + 4s + (-7 + -2s) = 0

Reorder the terms:
-9 + -7 + 4s + -2s = 0

Combine like terms: -9 + -7 = -16
-16 + 4s + -2s = 0

Combine like terms: 4s + -2s = 2s
-16 + 2s = 0

Solving
-16 + 2s = 0

Solving for variable 's'.

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

Add '16' to each side of the equation.
-16 + 16 + 2s = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 2s = 0 + 16
2s = 0 + 16

Combine like terms: 0 + 16 = 16
2s = 16

Divide each side by '2'.
s = 8

Simplifying
s = 8

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