-20-4(4-a)=0

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Solution for -20-4(4-a)=0 equation:


Simplifying
-20 + -4(4 + -1a) = 0
-20 + (4 * -4 + -1a * -4) = 0
-20 + (-16 + 4a) = 0

Combine like terms: -20 + -16 = -36
-36 + 4a = 0

Solving
-36 + 4a = 0

Solving for variable 'a'.

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

Add '36' to each side of the equation.
-36 + 36 + 4a = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 4a = 0 + 36
4a = 0 + 36

Combine like terms: 0 + 36 = 36
4a = 36

Divide each side by '4'.
a = 9

Simplifying
a = 9

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