9-7(-3x-4)+8(5-5x)=

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Solution for 9-7(-3x-4)+8(5-5x)= equation: 


Simplifying
9 + -7(-3x + -4) + 8(5 + -5x) = 0

Reorder the terms:
9 + -7(-4 + -3x) + 8(5 + -5x) = 0
9 + (-4 * -7 + -3x * -7) + 8(5 + -5x) = 0
9 + (28 + 21x) + 8(5 + -5x) = 0
9 + 28 + 21x + (5 * 8 + -5x * 8) = 0
9 + 28 + 21x + (40 + -40x) = 0

Reorder the terms:
9 + 28 + 40 + 21x + -40x = 0

Combine like terms: 9 + 28 = 37
37 + 40 + 21x + -40x = 0

Combine like terms: 37 + 40 = 77
77 + 21x + -40x = 0

Combine like terms: 21x + -40x = -19x
77 + -19x = 0

Solving
77 + -19x = 0

Solving for variable 'x'.

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

Add '-77' to each side of the equation.
77 + -77 + -19x = 0 + -77

Combine like terms: 77 + -77 = 0
0 + -19x = 0 + -77
-19x = 0 + -77

Combine like terms: 0 + -77 = -77
-19x = -77

Divide each side by '-19'.
x = 4.052631579

Simplifying
x = 4.052631579

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