3(4-(-5x-7))=105x+159

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Solution for 3(4-(-5x-7))=105x+159 equation: 


Simplifying
3(4 + -1(-5x + -7)) = 105x + 159

Reorder the terms:
3(4 + -1(-7 + -5x)) = 105x + 159
3(4 + (-7 * -1 + -5x * -1)) = 105x + 159
3(4 + (7 + 5x)) = 105x + 159

Combine like terms: 4 + 7 = 11
3(11 + 5x) = 105x + 159
(11 * 3 + 5x * 3) = 105x + 159
(33 + 15x) = 105x + 159

Reorder the terms:
33 + 15x = 159 + 105x

Solving
33 + 15x = 159 + 105x

Solving for variable 'x'.

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

Add '-105x' to each side of the equation.
33 + 15x + -105x = 159 + 105x + -105x

Combine like terms: 15x + -105x = -90x
33 + -90x = 159 + 105x + -105x

Combine like terms: 105x + -105x = 0
33 + -90x = 159 + 0
33 + -90x = 159

Add '-33' to each side of the equation.
33 + -33 + -90x = 159 + -33

Combine like terms: 33 + -33 = 0
0 + -90x = 159 + -33
-90x = 159 + -33

Combine like terms: 159 + -33 = 126
-90x = 126

Divide each side by '-90'.
x = -1.4

Simplifying
x = -1.4

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