(2x+1)+(x+4)=20

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Solution for (2x+1)+(x+4)=20 equation:


Simplifying
(2x + 1) + (x + 4) = 20

Reorder the terms:
(1 + 2x) + (x + 4) = 20

Remove parenthesis around (1 + 2x)
1 + 2x + (x + 4) = 20

Reorder the terms:
1 + 2x + (4 + x) = 20

Remove parenthesis around (4 + x)
1 + 2x + 4 + x = 20

Reorder the terms:
1 + 4 + 2x + x = 20

Combine like terms: 1 + 4 = 5
5 + 2x + x = 20

Combine like terms: 2x + x = 3x
5 + 3x = 20

Solving
5 + 3x = 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 + 3x = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 3x = 20 + -5
3x = 20 + -5

Combine like terms: 20 + -5 = 15
3x = 15

Divide each side by '3'.
x = 5

Simplifying
x = 5

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