6+42x=21x+12

Solution for 6+42x=21x+12 equation:

Simplifying
6 + 42x = 21x + 12

Reorder the terms:
6 + 42x = 12 + 21x

Solving
6 + 42x = 12 + 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.
6 + 42x + -21x = 12 + 21x + -21x

Combine like terms: 42x + -21x = 21x
6 + 21x = 12 + 21x + -21x

Combine like terms: 21x + -21x = 0
6 + 21x = 12 + 0
6 + 21x = 12

Add '-6' to each side of the equation.
6 + -6 + 21x = 12 + -6

Combine like terms: 6 + -6 = 0
0 + 21x = 12 + -6
21x = 12 + -6

Combine like terms: 12 + -6 = 6
21x = 6

Divide each side by '21'.
x = 0.2857142857

Simplifying
x = 0.2857142857