36-18=3(x-7)

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Solution for 36-18=3(x-7) equation:


Simplifying
36 + -18 = 3(x + -7)

Combine like terms: 36 + -18 = 18
18 = 3(x + -7)

Reorder the terms:
18 = 3(-7 + x)
18 = (-7 * 3 + x * 3)
18 = (-21 + 3x)

Solving
18 = -21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
18 + -3x = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
18 + -3x = -21 + 0
18 + -3x = -21

Add '-18' to each side of the equation.
18 + -18 + -3x = -21 + -18

Combine like terms: 18 + -18 = 0
0 + -3x = -21 + -18
-3x = -21 + -18

Combine like terms: -21 + -18 = -39
-3x = -39

Divide each side by '-3'.
x = 13

Simplifying
x = 13

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