3*(30+s)=4*(s+19)

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Solution for 3*(30+s)=4*(s+19) equation: 


Simplifying
3(30 + s) = 4(s + 19)
(30 * 3 + s * 3) = 4(s + 19)
(90 + 3s) = 4(s + 19)

Reorder the terms:
90 + 3s = 4(19 + s)
90 + 3s = (19 * 4 + s * 4)
90 + 3s = (76 + 4s)

Solving
90 + 3s = 76 + 4s

Solving for variable 's'.

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

Add '-4s' to each side of the equation.
90 + 3s + -4s = 76 + 4s + -4s

Combine like terms: 3s + -4s = -1s
90 + -1s = 76 + 4s + -4s

Combine like terms: 4s + -4s = 0
90 + -1s = 76 + 0
90 + -1s = 76

Add '-90' to each side of the equation.
90 + -90 + -1s = 76 + -90

Combine like terms: 90 + -90 = 0
0 + -1s = 76 + -90
-1s = 76 + -90

Combine like terms: 76 + -90 = -14
-1s = -14

Divide each side by '-1'.
s = 14

Simplifying
s = 14

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