(3x+18)-7=2(4+x)

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Solution for (3x+18)-7=2(4+x) equation:


Simplifying
(3x + 18) + -7 = 2(4 + x)

Reorder the terms:
(18 + 3x) + -7 = 2(4 + x)

Remove parenthesis around (18 + 3x)
18 + 3x + -7 = 2(4 + x)

Reorder the terms:
18 + -7 + 3x = 2(4 + x)

Combine like terms: 18 + -7 = 11
11 + 3x = 2(4 + x)
11 + 3x = (4 * 2 + x * 2)
11 + 3x = (8 + 2x)

Solving
11 + 3x = 8 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
11 + 3x + -2x = 8 + 2x + -2x

Combine like terms: 3x + -2x = 1x
11 + 1x = 8 + 2x + -2x

Combine like terms: 2x + -2x = 0
11 + 1x = 8 + 0
11 + 1x = 8

Add '-11' to each side of the equation.
11 + -11 + 1x = 8 + -11

Combine like terms: 11 + -11 = 0
0 + 1x = 8 + -11
1x = 8 + -11

Combine like terms: 8 + -11 = -3
1x = -3

Divide each side by '1'.
x = -3

Simplifying
x = -3

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