-7=-3(-3x-4)-x-3

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Solution for -7=-3(-3x-4)-x-3 equation:


Simplifying
-7 = -3(-3x + -4) + -1x + -3

Reorder the terms:
-7 = -3(-4 + -3x) + -1x + -3
-7 = (-4 * -3 + -3x * -3) + -1x + -3
-7 = (12 + 9x) + -1x + -3

Reorder the terms:
-7 = 12 + -3 + 9x + -1x

Combine like terms: 12 + -3 = 9
-7 = 9 + 9x + -1x

Combine like terms: 9x + -1x = 8x
-7 = 9 + 8x

Solving
-7 = 9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-7 + -8x = 9 + 8x + -8x

Combine like terms: 8x + -8x = 0
-7 + -8x = 9 + 0
-7 + -8x = 9

Add '7' to each side of the equation.
-7 + 7 + -8x = 9 + 7

Combine like terms: -7 + 7 = 0
0 + -8x = 9 + 7
-8x = 9 + 7

Combine like terms: 9 + 7 = 16
-8x = 16

Divide each side by '-8'.
x = -2

Simplifying
x = -2

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