4(a-5)=8a+20

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Solution for 4(a-5)=8a+20 equation:


Simplifying
4(a + -5) = 8a + 20

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

Reorder the terms:
-20 + 4a = 20 + 8a

Solving
-20 + 4a = 20 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
-20 + 4a + -8a = 20 + 8a + -8a

Combine like terms: 4a + -8a = -4a
-20 + -4a = 20 + 8a + -8a

Combine like terms: 8a + -8a = 0
-20 + -4a = 20 + 0
-20 + -4a = 20

Add '20' to each side of the equation.
-20 + 20 + -4a = 20 + 20

Combine like terms: -20 + 20 = 0
0 + -4a = 20 + 20
-4a = 20 + 20

Combine like terms: 20 + 20 = 40
-4a = 40

Divide each side by '-4'.
a = -10

Simplifying
a = -10

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