(2)(21)=(x)(6)

Solution for (2)(21)=(x)(6) equation:

Simplifying
(2)(21) = (x)(6)

Multiply 2 * 21
42 = (x)(6)

Reorder the terms for easier multiplication:
42 = 6x

Solving
42 = 6x

Solving for variable 'x'.

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

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

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

Add '-42' to each side of the equation.
42 + -42 + -6x = 0 + -42

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

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

Divide each side by '-6'.
x = 7

Simplifying
x = 7