3x-4(x+3)-x=3

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Solution for 3x-4(x+3)-x=3 equation:


Simplifying
3x + -4(x + 3) + -1x = 3

Reorder the terms:
3x + -4(3 + x) + -1x = 3
3x + (3 * -4 + x * -4) + -1x = 3
3x + (-12 + -4x) + -1x = 3

Reorder the terms:
-12 + 3x + -4x + -1x = 3

Combine like terms: 3x + -4x = -1x
-12 + -1x + -1x = 3

Combine like terms: -1x + -1x = -2x
-12 + -2x = 3

Solving
-12 + -2x = 3

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + -2x = 3 + 12

Combine like terms: -12 + 12 = 0
0 + -2x = 3 + 12
-2x = 3 + 12

Combine like terms: 3 + 12 = 15
-2x = 15

Divide each side by '-2'.
x = -7.5

Simplifying
x = -7.5

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