.5(3x+12)=42

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Solution for .5(3x+12)=42 equation:


Simplifying
0.5(3x + 12) = 42

Reorder the terms:
0.5(12 + 3x) = 42
(12 * 0.5 + 3x * 0.5) = 42
(6 + 1.5x) = 42

Solving
6 + 1.5x = 42

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 1.5x = 42 + -6

Combine like terms: 6 + -6 = 0
0 + 1.5x = 42 + -6
1.5x = 42 + -6

Combine like terms: 42 + -6 = 36
1.5x = 36

Divide each side by '1.5'.
x = 24

Simplifying
x = 24

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