3x-4=11+x

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Solution for 3x-4=11+x equation:


Simplifying
3x + -4 = 11 + x

Reorder the terms:
-4 + 3x = 11 + x

Solving
-4 + 3x = 11 + 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 + 3x + -1x = 11 + x + -1x

Combine like terms: 3x + -1x = 2x
-4 + 2x = 11 + x + -1x

Combine like terms: x + -1x = 0
-4 + 2x = 11 + 0
-4 + 2x = 11

Add '4' to each side of the equation.
-4 + 4 + 2x = 11 + 4

Combine like terms: -4 + 4 = 0
0 + 2x = 11 + 4
2x = 11 + 4

Combine like terms: 11 + 4 = 15
2x = 15

Divide each side by '2'.
x = 7.5

Simplifying
x = 7.5

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