(7x-3x+9)-(3x+5x-3)=

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Solution for (7x-3x+9)-(3x+5x-3)= equation:


Simplifying
(7x + -3x + 9) + -1(3x + 5x + -3) = 0

Reorder the terms:
(9 + 7x + -3x) + -1(3x + 5x + -3) = 0

Combine like terms: 7x + -3x = 4x
(9 + 4x) + -1(3x + 5x + -3) = 0

Remove parenthesis around (9 + 4x)
9 + 4x + -1(3x + 5x + -3) = 0

Reorder the terms:
9 + 4x + -1(-3 + 3x + 5x) = 0

Combine like terms: 3x + 5x = 8x
9 + 4x + -1(-3 + 8x) = 0
9 + 4x + (-3 * -1 + 8x * -1) = 0
9 + 4x + (3 + -8x) = 0

Reorder the terms:
9 + 3 + 4x + -8x = 0

Combine like terms: 9 + 3 = 12
12 + 4x + -8x = 0

Combine like terms: 4x + -8x = -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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