x+(x-30)+4(x-30)=120

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Solution for x+(x-30)+4(x-30)=120 equation:


Simplifying
x + (x + -30) + 4(x + -30) = 120

Reorder the terms:
x + (-30 + x) + 4(x + -30) = 120

Remove parenthesis around (-30 + x)
x + -30 + x + 4(x + -30) = 120

Reorder the terms:
x + -30 + x + 4(-30 + x) = 120
x + -30 + x + (-30 * 4 + x * 4) = 120
x + -30 + x + (-120 + 4x) = 120

Reorder the terms:
-30 + -120 + x + x + 4x = 120

Combine like terms: -30 + -120 = -150
-150 + x + x + 4x = 120

Combine like terms: x + x = 2x
-150 + 2x + 4x = 120

Combine like terms: 2x + 4x = 6x
-150 + 6x = 120

Solving
-150 + 6x = 120

Solving for variable 'x'.

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

Add '150' to each side of the equation.
-150 + 150 + 6x = 120 + 150

Combine like terms: -150 + 150 = 0
0 + 6x = 120 + 150
6x = 120 + 150

Combine like terms: 120 + 150 = 270
6x = 270

Divide each side by '6'.
x = 45

Simplifying
x = 45

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