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

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


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

Reorder the terms:
3(-3 + 7r) = 21r + -6
(-3 * 3 + 7r * 3) = 21r + -6
(-9 + 21r) = 21r + -6

Reorder the terms:
-9 + 21r = -6 + 21r

Add '-21r' to each side of the equation.
-9 + 21r + -21r = -6 + 21r + -21r

Combine like terms: 21r + -21r = 0
-9 + 0 = -6 + 21r + -21r
-9 = -6 + 21r + -21r

Combine like terms: 21r + -21r = 0
-9 = -6 + 0
-9 = -6

Solving
-9 = -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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