42-18=4(x-9)

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Solution for 42-18=4(x-9) equation:


Simplifying
42 + -18 = 4(x + -9)

Combine like terms: 42 + -18 = 24
24 = 4(x + -9)

Reorder the terms:
24 = 4(-9 + x)
24 = (-9 * 4 + x * 4)
24 = (-36 + 4x)

Solving
24 = -36 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
24 + -4x = -36 + 4x + -4x

Combine like terms: 4x + -4x = 0
24 + -4x = -36 + 0
24 + -4x = -36

Add '-24' to each side of the equation.
24 + -24 + -4x = -36 + -24

Combine like terms: 24 + -24 = 0
0 + -4x = -36 + -24
-4x = -36 + -24

Combine like terms: -36 + -24 = -60
-4x = -60

Divide each side by '-4'.
x = 15

Simplifying
x = 15

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