15X+8-X=4(2X+20)

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Solution for 15X+8-X=4(2X+20) equation:


Simplifying
15X + 8 + -1X = 4(2X + 20)

Reorder the terms:
8 + 15X + -1X = 4(2X + 20)

Combine like terms: 15X + -1X = 14X
8 + 14X = 4(2X + 20)

Reorder the terms:
8 + 14X = 4(20 + 2X)
8 + 14X = (20 * 4 + 2X * 4)
8 + 14X = (80 + 8X)

Solving
8 + 14X = 80 + 8X

Solving for variable 'X'.

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

Add '-8X' to each side of the equation.
8 + 14X + -8X = 80 + 8X + -8X

Combine like terms: 14X + -8X = 6X
8 + 6X = 80 + 8X + -8X

Combine like terms: 8X + -8X = 0
8 + 6X = 80 + 0
8 + 6X = 80

Add '-8' to each side of the equation.
8 + -8 + 6X = 80 + -8

Combine like terms: 8 + -8 = 0
0 + 6X = 80 + -8
6X = 80 + -8

Combine like terms: 80 + -8 = 72
6X = 72

Divide each side by '6'.
X = 12

Simplifying
X = 12

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