-20=7+8(s+4)

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Solution for -20=7+8(s+4) equation:


Simplifying
-20 = 7 + 8(s + 4)

Reorder the terms:
-20 = 7 + 8(4 + s)
-20 = 7 + (4 * 8 + s * 8)
-20 = 7 + (32 + 8s)

Combine like terms: 7 + 32 = 39
-20 = 39 + 8s

Solving
-20 = 39 + 8s

Solving for variable 's'.

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

Add '-8s' to each side of the equation.
-20 + -8s = 39 + 8s + -8s

Combine like terms: 8s + -8s = 0
-20 + -8s = 39 + 0
-20 + -8s = 39

Add '20' to each side of the equation.
-20 + 20 + -8s = 39 + 20

Combine like terms: -20 + 20 = 0
0 + -8s = 39 + 20
-8s = 39 + 20

Combine like terms: 39 + 20 = 59
-8s = 59

Divide each side by '-8'.
s = -7.375

Simplifying
s = -7.375

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