(7x-4)+(5x+8)=160

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Solution for (7x-4)+(5x+8)=160 equation:


Simplifying
(7x + -4) + (5x + 8) = 160

Reorder the terms:
(-4 + 7x) + (5x + 8) = 160

Remove parenthesis around (-4 + 7x)
-4 + 7x + (5x + 8) = 160

Reorder the terms:
-4 + 7x + (8 + 5x) = 160

Remove parenthesis around (8 + 5x)
-4 + 7x + 8 + 5x = 160

Reorder the terms:
-4 + 8 + 7x + 5x = 160

Combine like terms: -4 + 8 = 4
4 + 7x + 5x = 160

Combine like terms: 7x + 5x = 12x
4 + 12x = 160

Solving
4 + 12x = 160

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 12x = 160 + -4

Combine like terms: 4 + -4 = 0
0 + 12x = 160 + -4
12x = 160 + -4

Combine like terms: 160 + -4 = 156
12x = 156

Divide each side by '12'.
x = 13

Simplifying
x = 13

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