3x+4+2x+1=20

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Solution for 3x+4+2x+1=20 equation:


Simplifying
3x + 4 + 2x + 1 = 20

Reorder the terms:
4 + 1 + 3x + 2x = 20

Combine like terms: 4 + 1 = 5
5 + 3x + 2x = 20

Combine like terms: 3x + 2x = 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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