-21=6+4(s-3)

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Solution for -21=6+4(s-3) equation:


Simplifying
-21 = 6 + 4(s + -3)

Reorder the terms:
-21 = 6 + 4(-3 + s)
-21 = 6 + (-3 * 4 + s * 4)
-21 = 6 + (-12 + 4s)

Combine like terms: 6 + -12 = -6
-21 = -6 + 4s

Solving
-21 = -6 + 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.
-21 + -4s = -6 + 4s + -4s

Combine like terms: 4s + -4s = 0
-21 + -4s = -6 + 0
-21 + -4s = -6

Add '21' to each side of the equation.
-21 + 21 + -4s = -6 + 21

Combine like terms: -21 + 21 = 0
0 + -4s = -6 + 21
-4s = -6 + 21

Combine like terms: -6 + 21 = 15
-4s = 15

Divide each side by '-4'.
s = -3.75

Simplifying
s = -3.75

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