3x+4-x=10+x+9

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Solution for 3x+4-x=10+x+9 equation:


Simplifying
3x + 4 + -1x = 10 + x + 9

Reorder the terms:
4 + 3x + -1x = 10 + x + 9

Combine like terms: 3x + -1x = 2x
4 + 2x = 10 + x + 9

Reorder the terms:
4 + 2x = 10 + 9 + x

Combine like terms: 10 + 9 = 19
4 + 2x = 19 + x

Solving
4 + 2x = 19 + 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.
4 + 2x + -1x = 19 + x + -1x

Combine like terms: 2x + -1x = 1x
4 + 1x = 19 + x + -1x

Combine like terms: x + -1x = 0
4 + 1x = 19 + 0
4 + 1x = 19

Add '-4' to each side of the equation.
4 + -4 + 1x = 19 + -4

Combine like terms: 4 + -4 = 0
0 + 1x = 19 + -4
1x = 19 + -4

Combine like terms: 19 + -4 = 15
1x = 15

Divide each side by '1'.
x = 15

Simplifying
x = 15

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