42=18s+4(s+5)

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Solution for 42=18s+4(s+5) equation:


Simplifying
42 = 18s + 4(s + 5)

Reorder the terms:
42 = 18s + 4(5 + s)
42 = 18s + (5 * 4 + s * 4)
42 = 18s + (20 + 4s)

Reorder the terms:
42 = 20 + 18s + 4s

Combine like terms: 18s + 4s = 22s
42 = 20 + 22s

Solving
42 = 20 + 22s

Solving for variable 's'.

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

Add '-22s' to each side of the equation.
42 + -22s = 20 + 22s + -22s

Combine like terms: 22s + -22s = 0
42 + -22s = 20 + 0
42 + -22s = 20

Add '-42' to each side of the equation.
42 + -42 + -22s = 20 + -42

Combine like terms: 42 + -42 = 0
0 + -22s = 20 + -42
-22s = 20 + -42

Combine like terms: 20 + -42 = -22
-22s = -22

Divide each side by '-22'.
s = 1

Simplifying
s = 1

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