12x+3x-4=6x-42+15x

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Solution for 12x+3x-4=6x-42+15x equation:


Simplifying
12x + 3x + -4 = 6x + -42 + 15x

Reorder the terms:
-4 + 12x + 3x = 6x + -42 + 15x

Combine like terms: 12x + 3x = 15x
-4 + 15x = 6x + -42 + 15x

Reorder the terms:
-4 + 15x = -42 + 6x + 15x

Combine like terms: 6x + 15x = 21x
-4 + 15x = -42 + 21x

Solving
-4 + 15x = -42 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
-4 + 15x + -21x = -42 + 21x + -21x

Combine like terms: 15x + -21x = -6x
-4 + -6x = -42 + 21x + -21x

Combine like terms: 21x + -21x = 0
-4 + -6x = -42 + 0
-4 + -6x = -42

Add '4' to each side of the equation.
-4 + 4 + -6x = -42 + 4

Combine like terms: -4 + 4 = 0
0 + -6x = -42 + 4
-6x = -42 + 4

Combine like terms: -42 + 4 = -38
-6x = -38

Divide each side by '-6'.
x = 6.333333333

Simplifying
x = 6.333333333

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