18=5(x-1)-(x-7)

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Solution for 18=5(x-1)-(x-7) equation:


Simplifying
18 = 5(x + -1) + -1(x + -7)

Reorder the terms:
18 = 5(-1 + x) + -1(x + -7)
18 = (-1 * 5 + x * 5) + -1(x + -7)
18 = (-5 + 5x) + -1(x + -7)

Reorder the terms:
18 = -5 + 5x + -1(-7 + x)
18 = -5 + 5x + (-7 * -1 + x * -1)
18 = -5 + 5x + (7 + -1x)

Reorder the terms:
18 = -5 + 7 + 5x + -1x

Combine like terms: -5 + 7 = 2
18 = 2 + 5x + -1x

Combine like terms: 5x + -1x = 4x
18 = 2 + 4x

Solving
18 = 2 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
18 + -4x = 2 + 4x + -4x

Combine like terms: 4x + -4x = 0
18 + -4x = 2 + 0
18 + -4x = 2

Add '-18' to each side of the equation.
18 + -18 + -4x = 2 + -18

Combine like terms: 18 + -18 = 0
0 + -4x = 2 + -18
-4x = 2 + -18

Combine like terms: 2 + -18 = -16
-4x = -16

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

Simplifying
x = 4

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