3(7r-12)=21r-6

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Solution for 3(7r-12)=21r-6 equation:


Simplifying
3(7r + -12) = 21r + -6

Reorder the terms:
3(-12 + 7r) = 21r + -6
(-12 * 3 + 7r * 3) = 21r + -6
(-36 + 21r) = 21r + -6

Reorder the terms:
-36 + 21r = -6 + 21r

Add '-21r' to each side of the equation.
-36 + 21r + -21r = -6 + 21r + -21r

Combine like terms: 21r + -21r = 0
-36 + 0 = -6 + 21r + -21r
-36 = -6 + 21r + -21r

Combine like terms: 21r + -21r = 0
-36 = -6 + 0
-36 = -6

Solving
-36 = -6

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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