18=5(x-3)-(x-9)

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Solution for 18=5(x-3)-(x-9) equation:


Simplifying
18 = 5(x + -3) + -1(x + -9)

Reorder the terms:
18 = 5(-3 + x) + -1(x + -9)
18 = (-3 * 5 + x * 5) + -1(x + -9)
18 = (-15 + 5x) + -1(x + -9)

Reorder the terms:
18 = -15 + 5x + -1(-9 + x)
18 = -15 + 5x + (-9 * -1 + x * -1)
18 = -15 + 5x + (9 + -1x)

Reorder the terms:
18 = -15 + 9 + 5x + -1x

Combine like terms: -15 + 9 = -6
18 = -6 + 5x + -1x

Combine like terms: 5x + -1x = 4x
18 = -6 + 4x

Solving
18 = -6 + 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 = -6 + 4x + -4x

Combine like terms: 4x + -4x = 0
18 + -4x = -6 + 0
18 + -4x = -6

Add '-18' to each side of the equation.
18 + -18 + -4x = -6 + -18

Combine like terms: 18 + -18 = 0
0 + -4x = -6 + -18
-4x = -6 + -18

Combine like terms: -6 + -18 = -24
-4x = -24

Divide each side by '-4'.
x = 6

Simplifying
x = 6

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