4s-12=-5s+21

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Solution for 4s-12=-5s+21 equation:


Simplifying
4s + -12 = -5s + 21

Reorder the terms:
-12 + 4s = -5s + 21

Reorder the terms:
-12 + 4s = 21 + -5s

Solving
-12 + 4s = 21 + -5s

Solving for variable 's'.

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

Add '5s' to each side of the equation.
-12 + 4s + 5s = 21 + -5s + 5s

Combine like terms: 4s + 5s = 9s
-12 + 9s = 21 + -5s + 5s

Combine like terms: -5s + 5s = 0
-12 + 9s = 21 + 0
-12 + 9s = 21

Add '12' to each side of the equation.
-12 + 12 + 9s = 21 + 12

Combine like terms: -12 + 12 = 0
0 + 9s = 21 + 12
9s = 21 + 12

Combine like terms: 21 + 12 = 33
9s = 33

Divide each side by '9'.
s = 3.666666667

Simplifying
s = 3.666666667

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