7s+126=21s-291

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Solution for 7s+126=21s-291 equation:


Simplifying
7s + 126 = 21s + -291

Reorder the terms:
126 + 7s = 21s + -291

Reorder the terms:
126 + 7s = -291 + 21s

Solving
126 + 7s = -291 + 21s

Solving for variable 's'.

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

Add '-21s' to each side of the equation.
126 + 7s + -21s = -291 + 21s + -21s

Combine like terms: 7s + -21s = -14s
126 + -14s = -291 + 21s + -21s

Combine like terms: 21s + -21s = 0
126 + -14s = -291 + 0
126 + -14s = -291

Add '-126' to each side of the equation.
126 + -126 + -14s = -291 + -126

Combine like terms: 126 + -126 = 0
0 + -14s = -291 + -126
-14s = -291 + -126

Combine like terms: -291 + -126 = -417
-14s = -417

Divide each side by '-14'.
s = 29.78571429

Simplifying
s = 29.78571429

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