-7a+3(4a+5)=5a+12

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Solution for -7a+3(4a+5)=5a+12 equation: 


Simplifying
-7a + 3(4a + 5) = 5a + 12

Reorder the terms:
-7a + 3(5 + 4a) = 5a + 12
-7a + (5 * 3 + 4a * 3) = 5a + 12
-7a + (15 + 12a) = 5a + 12

Reorder the terms:
15 + -7a + 12a = 5a + 12

Combine like terms: -7a + 12a = 5a
15 + 5a = 5a + 12

Reorder the terms:
15 + 5a = 12 + 5a

Add '-5a' to each side of the equation.
15 + 5a + -5a = 12 + 5a + -5a

Combine like terms: 5a + -5a = 0
15 + 0 = 12 + 5a + -5a
15 = 12 + 5a + -5a

Combine like terms: 5a + -5a = 0
15 = 12 + 0
15 = 12

Solving
15 = 12

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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