7(2-x)-3(x+1)+3(9-(4-2x))=18

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Solution for 7(2-x)-3(x+1)+3(9-(4-2x))=18 equation:


Simplifying
7(2 + -1x) + -3(x + 1) + 3(9 + -1(4 + -2x)) = 18
(2 * 7 + -1x * 7) + -3(x + 1) + 3(9 + -1(4 + -2x)) = 18
(14 + -7x) + -3(x + 1) + 3(9 + -1(4 + -2x)) = 18

Reorder the terms:
14 + -7x + -3(1 + x) + 3(9 + -1(4 + -2x)) = 18
14 + -7x + (1 * -3 + x * -3) + 3(9 + -1(4 + -2x)) = 18
14 + -7x + (-3 + -3x) + 3(9 + -1(4 + -2x)) = 18
14 + -7x + -3 + -3x + 3(9 + (4 * -1 + -2x * -1)) = 18
14 + -7x + -3 + -3x + 3(9 + (-4 + 2x)) = 18

Combine like terms: 9 + -4 = 5
14 + -7x + -3 + -3x + 3(5 + 2x) = 18
14 + -7x + -3 + -3x + (5 * 3 + 2x * 3) = 18
14 + -7x + -3 + -3x + (15 + 6x) = 18

Reorder the terms:
14 + -3 + 15 + -7x + -3x + 6x = 18

Combine like terms: 14 + -3 = 11
11 + 15 + -7x + -3x + 6x = 18

Combine like terms: 11 + 15 = 26
26 + -7x + -3x + 6x = 18

Combine like terms: -7x + -3x = -10x
26 + -10x + 6x = 18

Combine like terms: -10x + 6x = -4x
26 + -4x = 18

Solving
26 + -4x = 18

Solving for variable 'x'.

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

Add '-26' to each side of the equation.
26 + -26 + -4x = 18 + -26

Combine like terms: 26 + -26 = 0
0 + -4x = 18 + -26
-4x = 18 + -26

Combine like terms: 18 + -26 = -8
-4x = -8

Divide each side by '-4'.
x = 2

Simplifying
x = 2

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