5x+4x-120=63-(x+3)

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Solution for 5x+4x-120=63-(x+3) equation:


Simplifying
5x + 4x + -120 = 63 + -1(x + 3)

Reorder the terms:
-120 + 5x + 4x = 63 + -1(x + 3)

Combine like terms: 5x + 4x = 9x
-120 + 9x = 63 + -1(x + 3)

Reorder the terms:
-120 + 9x = 63 + -1(3 + x)
-120 + 9x = 63 + (3 * -1 + x * -1)
-120 + 9x = 63 + (-3 + -1x)

Combine like terms: 63 + -3 = 60
-120 + 9x = 60 + -1x

Solving
-120 + 9x = 60 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-120 + 9x + x = 60 + -1x + x

Combine like terms: 9x + x = 10x
-120 + 10x = 60 + -1x + x

Combine like terms: -1x + x = 0
-120 + 10x = 60 + 0
-120 + 10x = 60

Add '120' to each side of the equation.
-120 + 120 + 10x = 60 + 120

Combine like terms: -120 + 120 = 0
0 + 10x = 60 + 120
10x = 60 + 120

Combine like terms: 60 + 120 = 180
10x = 180

Divide each side by '10'.
x = 18

Simplifying
x = 18

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