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

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


Simplifying
X + 7 + -2 + -1x(4) + -2 = 18

Reorder the terms for easier multiplication:
X + 7 + -2 + -1 * 4x + -2 = 18

Multiply -1 * 4
X + 7 + -2 + -4x + -2 = 18

Reorder the terms:
7 + -2 + -2 + X + -4x = 18

Combine like terms: 7 + -2 = 5
5 + -2 + X + -4x = 18

Combine like terms: 5 + -2 = 3
3 + X + -4x = 18

Solving
3 + X + -4x = 18

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + X + -3 + -4x = 18 + -3

Reorder the terms:
3 + -3 + X + -4x = 18 + -3

Combine like terms: 3 + -3 = 0
0 + X + -4x = 18 + -3
X + -4x = 18 + -3

Combine like terms: 18 + -3 = 15
X + -4x = 15

Add '4x' to each side of the equation.
X + -4x + 4x = 15 + 4x

Combine like terms: -4x + 4x = 0
X + 0 = 15 + 4x
X = 15 + 4x

Simplifying
X = 15 + 4x

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