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

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


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

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

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

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

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

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

Combine like terms: 9 + 3 = 12
12 + 3x + -4x = 0

Combine like terms: 3x + -4x = -1x
12 + -1x = 0

Solving
12 + -1x = 0

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 + -1x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = 0 + -12
-1x = 0 + -12

Combine like terms: 0 + -12 = -12
-1x = -12

Divide each side by '-1'.
x = 12

Simplifying
x = 12

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