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

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


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

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

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

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

Reorder the terms:
-3 + 2x = 4 + x

Solving
-3 + 2x = 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.
-3 + 2x + -1x = 4 + x + -1x

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

Combine like terms: x + -1x = 0
-3 + 1x = 4 + 0
-3 + 1x = 4

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

Combine like terms: -3 + 3 = 0
0 + 1x = 4 + 3
1x = 4 + 3

Combine like terms: 4 + 3 = 7
1x = 7

Divide each side by '1'.
x = 7

Simplifying
x = 7

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