3x-(4-x)=2x+9

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Solution for 3x-(4-x)=2x+9 equation:


Simplifying
3x + -1(4 + -1x) = 2x + 9
3x + (4 * -1 + -1x * -1) = 2x + 9
3x + (-4 + 1x) = 2x + 9

Reorder the terms:
-4 + 3x + 1x = 2x + 9

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

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

Solving
-4 + 4x = 9 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-4 + 4x + -2x = 9 + 2x + -2x

Combine like terms: 4x + -2x = 2x
-4 + 2x = 9 + 2x + -2x

Combine like terms: 2x + -2x = 0
-4 + 2x = 9 + 0
-4 + 2x = 9

Add '4' to each side of the equation.
-4 + 4 + 2x = 9 + 4

Combine like terms: -4 + 4 = 0
0 + 2x = 9 + 4
2x = 9 + 4

Combine like terms: 9 + 4 = 13
2x = 13

Divide each side by '2'.
x = 6.5

Simplifying
x = 6.5

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