120=X+X*2+X*4+X*8

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Solution for 120=X+X*2+X*4+X*8 equation:


Simplifying
120 = X + X * 2 + X * 4 + X * 8

Reorder the terms for easier multiplication:
120 = X + 2X + X * 4 + X * 8

Reorder the terms for easier multiplication:
120 = X + 2X + 4X + X * 8

Reorder the terms for easier multiplication:
120 = X + 2X + 4X + 8X

Combine like terms: X + 2X = 3X
120 = 3X + 4X + 8X

Combine like terms: 3X + 4X = 7X
120 = 7X + 8X

Combine like terms: 7X + 8X = 15X
120 = 15X

Solving
120 = 15X

Solving for variable 'X'.

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

Add '-15X' to each side of the equation.
120 + -15X = 15X + -15X

Combine like terms: 15X + -15X = 0
120 + -15X = 0

Add '-120' to each side of the equation.
120 + -120 + -15X = 0 + -120

Combine like terms: 120 + -120 = 0
0 + -15X = 0 + -120
-15X = 0 + -120

Combine like terms: 0 + -120 = -120
-15X = -120

Divide each side by '-15'.
X = 8

Simplifying
X = 8

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