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

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


Simplifying
3x + (x + 4) + -1(2x + -9) = 0

Reorder the terms:
3x + (4 + x) + -1(2x + -9) = 0

Remove parenthesis around (4 + x)
3x + 4 + x + -1(2x + -9) = 0

Reorder the terms:
3x + 4 + x + -1(-9 + 2x) = 0
3x + 4 + x + (-9 * -1 + 2x * -1) = 0
3x + 4 + x + (9 + -2x) = 0

Reorder the terms:
4 + 9 + 3x + x + -2x = 0

Combine like terms: 4 + 9 = 13
13 + 3x + x + -2x = 0

Combine like terms: 3x + x = 4x
13 + 4x + -2x = 0

Combine like terms: 4x + -2x = 2x
13 + 2x = 0

Solving
13 + 2x = 0

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 2x = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 0 + -13
2x = 0 + -13

Combine like terms: 0 + -13 = -13
2x = -13

Divide each side by '2'.
x = -6.5

Simplifying
x = -6.5

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