x+(x-9)+4x=87

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Solution for x+(x-9)+4x=87 equation:


Simplifying
x + (x + -9) + 4x = 87

Reorder the terms:
x + (-9 + x) + 4x = 87

Remove parenthesis around (-9 + x)
x + -9 + x + 4x = 87

Reorder the terms:
-9 + x + x + 4x = 87

Combine like terms: x + x = 2x
-9 + 2x + 4x = 87

Combine like terms: 2x + 4x = 6x
-9 + 6x = 87

Solving
-9 + 6x = 87

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 6x = 87 + 9

Combine like terms: -9 + 9 = 0
0 + 6x = 87 + 9
6x = 87 + 9

Combine like terms: 87 + 9 = 96
6x = 96

Divide each side by '6'.
x = 16

Simplifying
x = 16

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