9x+9-(5x-4)=-7

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Solution for 9x+9-(5x-4)=-7 equation:


Simplifying
9x + 9 + -1(5x + -4) = -7

Reorder the terms:
9x + 9 + -1(-4 + 5x) = -7
9x + 9 + (-4 * -1 + 5x * -1) = -7
9x + 9 + (4 + -5x) = -7

Reorder the terms:
9 + 4 + 9x + -5x = -7

Combine like terms: 9 + 4 = 13
13 + 9x + -5x = -7

Combine like terms: 9x + -5x = 4x
13 + 4x = -7

Solving
13 + 4x = -7

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 4x = -7 + -13

Combine like terms: 13 + -13 = 0
0 + 4x = -7 + -13
4x = -7 + -13

Combine like terms: -7 + -13 = -20
4x = -20

Divide each side by '4'.
x = -5

Simplifying
x = -5

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