7(s+18)=21(5-14)

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Solution for 7(s+18)=21(5-14) equation:


Simplifying
7(s + 18) = 21(5 + -14)

Reorder the terms:
7(18 + s) = 21(5 + -14)
(18 * 7 + s * 7) = 21(5 + -14)
(126 + 7s) = 21(5 + -14)

Combine like terms: 5 + -14 = -9
126 + 7s = 21(-9)

Multiply 21 * -9
126 + 7s = -189

Solving
126 + 7s = -189

Solving for variable 's'.

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

Add '-126' to each side of the equation.
126 + -126 + 7s = -189 + -126

Combine like terms: 126 + -126 = 0
0 + 7s = -189 + -126
7s = -189 + -126

Combine like terms: -189 + -126 = -315
7s = -315

Divide each side by '7'.
s = -45

Simplifying
s = -45

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