3s-4(28-s)=28

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Solution for 3s-4(28-s)=28 equation:


Simplifying
3s + -4(28 + -1s) = 28
3s + (28 * -4 + -1s * -4) = 28
3s + (-112 + 4s) = 28

Reorder the terms:
-112 + 3s + 4s = 28

Combine like terms: 3s + 4s = 7s
-112 + 7s = 28

Solving
-112 + 7s = 28

Solving for variable 's'.

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

Add '112' to each side of the equation.
-112 + 112 + 7s = 28 + 112

Combine like terms: -112 + 112 = 0
0 + 7s = 28 + 112
7s = 28 + 112

Combine like terms: 28 + 112 = 140
7s = 140

Divide each side by '7'.
s = 20

Simplifying
s = 20

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