21+3(2x+3)=39

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Solution for 21+3(2x+3)=39 equation:


Simplifying
21 + 3(2x + 3) = 39

Reorder the terms:
21 + 3(3 + 2x) = 39
21 + (3 * 3 + 2x * 3) = 39
21 + (9 + 6x) = 39

Combine like terms: 21 + 9 = 30
30 + 6x = 39

Solving
30 + 6x = 39

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 6x = 39 + -30

Combine like terms: 30 + -30 = 0
0 + 6x = 39 + -30
6x = 39 + -30

Combine like terms: 39 + -30 = 9
6x = 9

Divide each side by '6'.
x = 1.5

Simplifying
x = 1.5

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