3a+5(a-4)=

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


Simplifying
3a + 5(a + -4) = 0

Reorder the terms:
3a + 5(-4 + a) = 0
3a + (-4 * 5 + a * 5) = 0
3a + (-20 + 5a) = 0

Reorder the terms:
-20 + 3a + 5a = 0

Combine like terms: 3a + 5a = 8a
-20 + 8a = 0

Solving
-20 + 8a = 0

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 + 8a = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 8a = 0 + 20
8a = 0 + 20

Combine like terms: 0 + 20 = 20
8a = 20

Divide each side by '8'.
a = 2.5

Simplifying
a = 2.5

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