(2x)+(3x+1)=21

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Solution for (2x)+(3x+1)=21 equation:


Simplifying
(2x) + (3x + 1) = 21

Reorder the terms:
(2x) + (1 + 3x) = 21

Remove parenthesis around (1 + 3x)
(2x) + 1 + 3x = 21

Reorder the terms:
1 + (2x) + 3x = 21

Combine like terms: (2x) + 3x = 5x
1 + 5x = 21

Solving
1 + 5x = 21

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 = 21 + -1

Combine like terms: 1 + -1 = 0
0 + 5x = 21 + -1
5x = 21 + -1

Combine like terms: 21 + -1 = 20
5x = 20

Divide each side by '5'.
x = 4

Simplifying
x = 4

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