3+6x-x-9=-1+4(3x+4)

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Solution for 3+6x-x-9=-1+4(3x+4) equation:


Simplifying
3 + 6x + -1x + -9 = -1 + 4(3x + 4)

Reorder the terms:
3 + -9 + 6x + -1x = -1 + 4(3x + 4)

Combine like terms: 3 + -9 = -6
-6 + 6x + -1x = -1 + 4(3x + 4)

Combine like terms: 6x + -1x = 5x
-6 + 5x = -1 + 4(3x + 4)

Reorder the terms:
-6 + 5x = -1 + 4(4 + 3x)
-6 + 5x = -1 + (4 * 4 + 3x * 4)
-6 + 5x = -1 + (16 + 12x)

Combine like terms: -1 + 16 = 15
-6 + 5x = 15 + 12x

Solving
-6 + 5x = 15 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
-6 + 5x + -12x = 15 + 12x + -12x

Combine like terms: 5x + -12x = -7x
-6 + -7x = 15 + 12x + -12x

Combine like terms: 12x + -12x = 0
-6 + -7x = 15 + 0
-6 + -7x = 15

Add '6' to each side of the equation.
-6 + 6 + -7x = 15 + 6

Combine like terms: -6 + 6 = 0
0 + -7x = 15 + 6
-7x = 15 + 6

Combine like terms: 15 + 6 = 21
-7x = 21

Divide each side by '-7'.
x = -3

Simplifying
x = -3

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