3x-42=3(5x+2)

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Solution for 3x-42=3(5x+2) equation:


Simplifying
3x + -42 = 3(5x + 2)

Reorder the terms:
-42 + 3x = 3(5x + 2)

Reorder the terms:
-42 + 3x = 3(2 + 5x)
-42 + 3x = (2 * 3 + 5x * 3)
-42 + 3x = (6 + 15x)

Solving
-42 + 3x = 6 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
-42 + 3x + -15x = 6 + 15x + -15x

Combine like terms: 3x + -15x = -12x
-42 + -12x = 6 + 15x + -15x

Combine like terms: 15x + -15x = 0
-42 + -12x = 6 + 0
-42 + -12x = 6

Add '42' to each side of the equation.
-42 + 42 + -12x = 6 + 42

Combine like terms: -42 + 42 = 0
0 + -12x = 6 + 42
-12x = 6 + 42

Combine like terms: 6 + 42 = 48
-12x = 48

Divide each side by '-12'.
x = -4

Simplifying
x = -4

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