15=3x+4x+8

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Solution for 15=3x+4x+8 equation:


Simplifying
15 = 3x + 4x + 8

Reorder the terms:
15 = 8 + 3x + 4x

Combine like terms: 3x + 4x = 7x
15 = 8 + 7x

Solving
15 = 8 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
15 + -7x = 8 + 7x + -7x

Combine like terms: 7x + -7x = 0
15 + -7x = 8 + 0
15 + -7x = 8

Add '-15' to each side of the equation.
15 + -15 + -7x = 8 + -15

Combine like terms: 15 + -15 = 0
0 + -7x = 8 + -15
-7x = 8 + -15

Combine like terms: 8 + -15 = -7
-7x = -7

Divide each side by '-7'.
x = 1

Simplifying
x = 1

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