x+2*x+(x+1)=85

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Solution for x+2*x+(x+1)=85 equation:


Simplifying
x + 2x + (x + 1) = 85

Reorder the terms:
x + 2x + (1 + x) = 85

Remove parenthesis around (1 + x)
x + 2x + 1 + x = 85

Reorder the terms:
1 + x + 2x + x = 85

Combine like terms: x + 2x = 3x
1 + 3x + x = 85

Combine like terms: 3x + x = 4x
1 + 4x = 85

Solving
1 + 4x = 85

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 4x = 85 + -1

Combine like terms: 1 + -1 = 0
0 + 4x = 85 + -1
4x = 85 + -1

Combine like terms: 85 + -1 = 84
4x = 84

Divide each side by '4'.
x = 21

Simplifying
x = 21

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