2(3+2x)-1=21

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


Simplifying
2(3 + 2x) + -1 = 21
(3 * 2 + 2x * 2) + -1 = 21
(6 + 4x) + -1 = 21

Reorder the terms:
6 + -1 + 4x = 21

Combine like terms: 6 + -1 = 5
5 + 4x = 21

Solving
5 + 4x = 21

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 + 4x = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 4x = 21 + -5
4x = 21 + -5

Combine like terms: 21 + -5 = 16
4x = 16

Divide each side by '4'.
x = 4

Simplifying
x = 4

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