5*(a-4)-8*a=55

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Solution for 5*(a-4)-8*a=55 equation: 


Simplifying
5(a + -4) + -8a = 55

Reorder the terms:
5(-4 + a) + -8a = 55
(-4 * 5 + a * 5) + -8a = 55
(-20 + 5a) + -8a = 55

Combine like terms: 5a + -8a = -3a
-20 + -3a = 55

Solving
-20 + -3a = 55

Solving for variable 'a'.

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

Add '20' to each side of the equation.
-20 + 20 + -3a = 55 + 20

Combine like terms: -20 + 20 = 0
0 + -3a = 55 + 20
-3a = 55 + 20

Combine like terms: 55 + 20 = 75
-3a = 75

Divide each side by '-3'.
a = -25

Simplifying
a = -25

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