14=3s-4(21-s)

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Solution for 14=3s-4(21-s) equation:


Simplifying
14 = 3s + -4(21 + -1s)
14 = 3s + (21 * -4 + -1s * -4)
14 = 3s + (-84 + 4s)

Reorder the terms:
14 = -84 + 3s + 4s

Combine like terms: 3s + 4s = 7s
14 = -84 + 7s

Solving
14 = -84 + 7s

Solving for variable 's'.

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

Add '-7s' to each side of the equation.
14 + -7s = -84 + 7s + -7s

Combine like terms: 7s + -7s = 0
14 + -7s = -84 + 0
14 + -7s = -84

Add '-14' to each side of the equation.
14 + -14 + -7s = -84 + -14

Combine like terms: 14 + -14 = 0
0 + -7s = -84 + -14
-7s = -84 + -14

Combine like terms: -84 + -14 = -98
-7s = -98

Divide each side by '-7'.
s = 14

Simplifying
s = 14

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