2x(3xr)=42

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Solution for 2x(3xr)=42 equation: 


Simplifying
2x(3xr) = 42

Remove parenthesis around (3rx)
2x * 3rx = 42

Reorder the terms for easier multiplication:
2 * 3x * rx = 42

Multiply 2 * 3
6x * rx = 42

Multiply x * rx
6rx2 = 42

Solving
6rx2 = 42

Solving for variable 'r'.

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

Divide each side by '6x2'.
r = 7x-2

Simplifying
r = 7x-2

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