15-3x+1=x+4

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Solution for 15-3x+1=x+4 equation: 


Simplifying
15 + -3x + 1 = x + 4

Reorder the terms:
15 + 1 + -3x = x + 4

Combine like terms: 15 + 1 = 16
16 + -3x = x + 4

Reorder the terms:
16 + -3x = 4 + x

Solving
16 + -3x = 4 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
16 + -3x + -1x = 4 + x + -1x

Combine like terms: -3x + -1x = -4x
16 + -4x = 4 + x + -1x

Combine like terms: x + -1x = 0
16 + -4x = 4 + 0
16 + -4x = 4

Add '-16' to each side of the equation.
16 + -16 + -4x = 4 + -16

Combine like terms: 16 + -16 = 0
0 + -4x = 4 + -16
-4x = 4 + -16

Combine like terms: 4 + -16 = -12
-4x = -12

Divide each side by '-4'.
x = 3

Simplifying
x = 3

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