x+x+4x-5+4x-5=80

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Solution for x+x+4x-5+4x-5=80 equation:


Simplifying
x + x + 4x + -5 + 4x + -5 = 80

Reorder the terms:
-5 + -5 + x + x + 4x + 4x = 80

Combine like terms: -5 + -5 = -10
-10 + x + x + 4x + 4x = 80

Combine like terms: x + x = 2x
-10 + 2x + 4x + 4x = 80

Combine like terms: 2x + 4x = 6x
-10 + 6x + 4x = 80

Combine like terms: 6x + 4x = 10x
-10 + 10x = 80

Solving
-10 + 10x = 80

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 10x = 80 + 10

Combine like terms: -10 + 10 = 0
0 + 10x = 80 + 10
10x = 80 + 10

Combine like terms: 80 + 10 = 90
10x = 90

Divide each side by '10'.
x = 9

Simplifying
x = 9

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