7r*2-14r-31=-10

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Solution for 7r*2-14r-31=-10 equation: 


Simplifying
7r * 2 + -14r + -31 = -10

Reorder the terms for easier multiplication:
7 * 2r + -14r + -31 = -10

Multiply 7 * 2
14r + -14r + -31 = -10

Reorder the terms:
-31 + 14r + -14r = -10

Combine like terms: 14r + -14r = 0
-31 + 0 = -10
-31 = -10

Solving
-31 = -10

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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