3(4x+9)=39+42

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Solution for 3(4x+9)=39+42 equation:


Simplifying
3(4x + 9) = 39 + 42

Reorder the terms:
3(9 + 4x) = 39 + 42
(9 * 3 + 4x * 3) = 39 + 42
(27 + 12x) = 39 + 42

Combine like terms: 39 + 42 = 81
27 + 12x = 81

Solving
27 + 12x = 81

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + 12x = 81 + -27

Combine like terms: 27 + -27 = 0
0 + 12x = 81 + -27
12x = 81 + -27

Combine like terms: 81 + -27 = 54
12x = 54

Divide each side by '12'.
x = 4.5

Simplifying
x = 4.5

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