x+(x+1)+3x=81

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Solution for x+(x+1)+3x=81 equation:


Simplifying
x + (x + 1) + 3x = 81

Reorder the terms:
x + (1 + x) + 3x = 81

Remove parenthesis around (1 + x)
x + 1 + x + 3x = 81

Reorder the terms:
1 + x + x + 3x = 81

Combine like terms: x + x = 2x
1 + 2x + 3x = 81

Combine like terms: 2x + 3x = 5x
1 + 5x = 81

Solving
1 + 5x = 81

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 + 5x = 81 + -1

Combine like terms: 1 + -1 = 0
0 + 5x = 81 + -1
5x = 81 + -1

Combine like terms: 81 + -1 = 80
5x = 80

Divide each side by '5'.
x = 16

Simplifying
x = 16

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