(-3x-9)-(4x+8)=

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Solution for (-3x-9)-(4x+8)= equation:


Simplifying
(-3x + -9) + -1(4x + 8) = 0

Reorder the terms:
(-9 + -3x) + -1(4x + 8) = 0

Remove parenthesis around (-9 + -3x)
-9 + -3x + -1(4x + 8) = 0

Reorder the terms:
-9 + -3x + -1(8 + 4x) = 0
-9 + -3x + (8 * -1 + 4x * -1) = 0
-9 + -3x + (-8 + -4x) = 0

Reorder the terms:
-9 + -8 + -3x + -4x = 0

Combine like terms: -9 + -8 = -17
-17 + -3x + -4x = 0

Combine like terms: -3x + -4x = -7x
-17 + -7x = 0

Solving
-17 + -7x = 0

Solving for variable 'x'.

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

Add '17' to each side of the equation.
-17 + 17 + -7x = 0 + 17

Combine like terms: -17 + 17 = 0
0 + -7x = 0 + 17
-7x = 0 + 17

Combine like terms: 0 + 17 = 17
-7x = 17

Divide each side by '-7'.
x = -2.428571429

Simplifying
x = -2.428571429

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