3x+x+(x+5)=20

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Solution for 3x+x+(x+5)=20 equation:


Simplifying
3x + x + (x + 5) = 20

Reorder the terms:
3x + x + (5 + x) = 20

Remove parenthesis around (5 + x)
3x + x + 5 + x = 20

Reorder the terms:
5 + 3x + x + x = 20

Combine like terms: 3x + x = 4x
5 + 4x + x = 20

Combine like terms: 4x + x = 5x
5 + 5x = 20

Solving
5 + 5x = 20

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 5x = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 5x = 20 + -5
5x = 20 + -5

Combine like terms: 20 + -5 = 15
5x = 15

Divide each side by '5'.
x = 3

Simplifying
x = 3

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