-12a-40a+15=-57

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Solution for -12a-40a+15=-57 equation:


Simplifying
-12a + -40a + 15 = -57

Reorder the terms:
15 + -12a + -40a = -57

Combine like terms: -12a + -40a = -52a
15 + -52a = -57

Solving
15 + -52a = -57

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + -52a = -57 + -15

Combine like terms: 15 + -15 = 0
0 + -52a = -57 + -15
-52a = -57 + -15

Combine like terms: -57 + -15 = -72
-52a = -72

Divide each side by '-52'.
a = 1.384615385

Simplifying
a = 1.384615385

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