-40a+28=12

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Solution for -40a+28=12 equation: 


Simplifying
-40a + 28 = 12

Reorder the terms:
28 + -40a = 12

Solving
28 + -40a = 12

Solving for variable 'a'.

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

Add '-28' to each side of the equation.
28 + -28 + -40a = 12 + -28

Combine like terms: 28 + -28 = 0
0 + -40a = 12 + -28
-40a = 12 + -28

Combine like terms: 12 + -28 = -16
-40a = -16

Divide each side by '-40'.
a = 0.4

Simplifying
a = 0.4

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