4(x-3)-(x+3)=6

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Solution for 4(x-3)-(x+3)=6 equation:


Simplifying
4(x + -3) + -1(x + 3) = 6

Reorder the terms:
4(-3 + x) + -1(x + 3) = 6
(-3 * 4 + x * 4) + -1(x + 3) = 6
(-12 + 4x) + -1(x + 3) = 6

Reorder the terms:
-12 + 4x + -1(3 + x) = 6
-12 + 4x + (3 * -1 + x * -1) = 6
-12 + 4x + (-3 + -1x) = 6

Reorder the terms:
-12 + -3 + 4x + -1x = 6

Combine like terms: -12 + -3 = -15
-15 + 4x + -1x = 6

Combine like terms: 4x + -1x = 3x
-15 + 3x = 6

Solving
-15 + 3x = 6

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 3x = 6 + 15

Combine like terms: -15 + 15 = 0
0 + 3x = 6 + 15
3x = 6 + 15

Combine like terms: 6 + 15 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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