3x-(-x-(9-5x)+7x)=99+x

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Solution for 3x-(-x-(9-5x)+7x)=99+x equation:


Simplifying
3x + -1(-1x + -1(9 + -5x) + 7x) = 99 + x
3x + -1(-1x + (9 * -1 + -5x * -1) + 7x) = 99 + x
3x + -1(-1x + (-9 + 5x) + 7x) = 99 + x

Reorder the terms:
3x + -1(-9 + -1x + 5x + 7x) = 99 + x

Combine like terms: -1x + 5x = 4x
3x + -1(-9 + 4x + 7x) = 99 + x

Combine like terms: 4x + 7x = 11x
3x + -1(-9 + 11x) = 99 + x
3x + (-9 * -1 + 11x * -1) = 99 + x
3x + (9 + -11x) = 99 + x

Reorder the terms:
9 + 3x + -11x = 99 + x

Combine like terms: 3x + -11x = -8x
9 + -8x = 99 + x

Solving
9 + -8x = 99 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
9 + -8x + -1x = 99 + x + -1x

Combine like terms: -8x + -1x = -9x
9 + -9x = 99 + x + -1x

Combine like terms: x + -1x = 0
9 + -9x = 99 + 0
9 + -9x = 99

Add '-9' to each side of the equation.
9 + -9 + -9x = 99 + -9

Combine like terms: 9 + -9 = 0
0 + -9x = 99 + -9
-9x = 99 + -9

Combine like terms: 99 + -9 = 90
-9x = 90

Divide each side by '-9'.
x = -10

Simplifying
x = -10

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