7x+3-(3x-9)=

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Solution for 7x+3-(3x-9)= equation:


Simplifying
7x + 3 + -1(3x + -9) = 0

Reorder the terms:
7x + 3 + -1(-9 + 3x) = 0
7x + 3 + (-9 * -1 + 3x * -1) = 0
7x + 3 + (9 + -3x) = 0

Reorder the terms:
3 + 9 + 7x + -3x = 0

Combine like terms: 3 + 9 = 12
12 + 7x + -3x = 0

Combine like terms: 7x + -3x = 4x
12 + 4x = 0

Solving
12 + 4x = 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 + 4x = 0 + -12

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

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

Divide each side by '4'.
x = -3

Simplifying
x = -3

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