7(12-x)=3x+18

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Solution for 7(12-x)=3x+18 equation:


Simplifying
7(12 + -1x) = 3x + 18
(12 * 7 + -1x * 7) = 3x + 18
(84 + -7x) = 3x + 18

Reorder the terms:
84 + -7x = 18 + 3x

Solving
84 + -7x = 18 + 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.
84 + -7x + -3x = 18 + 3x + -3x

Combine like terms: -7x + -3x = -10x
84 + -10x = 18 + 3x + -3x

Combine like terms: 3x + -3x = 0
84 + -10x = 18 + 0
84 + -10x = 18

Add '-84' to each side of the equation.
84 + -84 + -10x = 18 + -84

Combine like terms: 84 + -84 = 0
0 + -10x = 18 + -84
-10x = 18 + -84

Combine like terms: 18 + -84 = -66
-10x = -66

Divide each side by '-10'.
x = 6.6

Simplifying
x = 6.6

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