3(5x+6)=42+3x

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Solution for 3(5x+6)=42+3x equation:


Simplifying
3(5x + 6) = 42 + 3x

Reorder the terms:
3(6 + 5x) = 42 + 3x
(6 * 3 + 5x * 3) = 42 + 3x
(18 + 15x) = 42 + 3x

Solving
18 + 15x = 42 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
18 + 15x + -3x = 42 + 3x + -3x

Combine like terms: 15x + -3x = 12x
18 + 12x = 42 + 3x + -3x

Combine like terms: 3x + -3x = 0
18 + 12x = 42 + 0
18 + 12x = 42

Add '-18' to each side of the equation.
18 + -18 + 12x = 42 + -18

Combine like terms: 18 + -18 = 0
0 + 12x = 42 + -18
12x = 42 + -18

Combine like terms: 42 + -18 = 24
12x = 24

Divide each side by '12'.
x = 2

Simplifying
x = 2

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