x+4x+(4x-8)=55

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Solution for x+4x+(4x-8)=55 equation:


Simplifying
x + 4x + (4x + -8) = 55

Reorder the terms:
x + 4x + (-8 + 4x) = 55

Remove parenthesis around (-8 + 4x)
x + 4x + -8 + 4x = 55

Reorder the terms:
-8 + x + 4x + 4x = 55

Combine like terms: x + 4x = 5x
-8 + 5x + 4x = 55

Combine like terms: 5x + 4x = 9x
-8 + 9x = 55

Solving
-8 + 9x = 55

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 9x = 55 + 8

Combine like terms: -8 + 8 = 0
0 + 9x = 55 + 8
9x = 55 + 8

Combine like terms: 55 + 8 = 63
9x = 63

Divide each side by '9'.
x = 7

Simplifying
x = 7

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