x+(x*2)+(x+3)=81

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Solution for x+(x*2)+(x+3)=81 equation:


Simplifying
x + (x * 2) + (x + 3) = 81

Reorder the terms for easier multiplication:
x + (2x) + (x + 3) = 81

Reorder the terms:
x + (2x) + (3 + x) = 81

Remove parenthesis around (3 + x)
x + (2x) + 3 + x = 81

Reorder the terms:
3 + x + (2x) + x = 81

Combine like terms: x + (2x) = 3x
3 + 3x + x = 81

Combine like terms: 3x + x = 4x
3 + 4x = 81

Solving
3 + 4x = 81

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 4x = 81 + -3

Combine like terms: 3 + -3 = 0
0 + 4x = 81 + -3
4x = 81 + -3

Combine like terms: 81 + -3 = 78
4x = 78

Divide each side by '4'.
x = 19.5

Simplifying
x = 19.5

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