80=(x+5)+(3x-5)

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Solution for 80=(x+5)+(3x-5) equation:


Simplifying
80 = (x + 5) + (3x + -5)

Reorder the terms:
80 = (5 + x) + (3x + -5)

Remove parenthesis around (5 + x)
80 = 5 + x + (3x + -5)

Reorder the terms:
80 = 5 + x + (-5 + 3x)

Remove parenthesis around (-5 + 3x)
80 = 5 + x + -5 + 3x

Reorder the terms:
80 = 5 + -5 + x + 3x

Combine like terms: 5 + -5 = 0
80 = 0 + x + 3x
80 = x + 3x

Combine like terms: x + 3x = 4x
80 = 4x

Solving
80 = 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
80 + -4x = 4x + -4x

Combine like terms: 4x + -4x = 0
80 + -4x = 0

Add '-80' to each side of the equation.
80 + -80 + -4x = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -4x = 0 + -80
-4x = 0 + -80

Combine like terms: 0 + -80 = -80
-4x = -80

Divide each side by '-4'.
x = 20

Simplifying
x = 20

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