1-4(20-4a)=6-a

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Solution for 1-4(20-4a)=6-a equation:


Simplifying
1 + -4(20 + -4a) = 6 + -1a
1 + (20 * -4 + -4a * -4) = 6 + -1a
1 + (-80 + 16a) = 6 + -1a

Combine like terms: 1 + -80 = -79
-79 + 16a = 6 + -1a

Solving
-79 + 16a = 6 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
-79 + 16a + a = 6 + -1a + a

Combine like terms: 16a + a = 17a
-79 + 17a = 6 + -1a + a

Combine like terms: -1a + a = 0
-79 + 17a = 6 + 0
-79 + 17a = 6

Add '79' to each side of the equation.
-79 + 79 + 17a = 6 + 79

Combine like terms: -79 + 79 = 0
0 + 17a = 6 + 79
17a = 6 + 79

Combine like terms: 6 + 79 = 85
17a = 85

Divide each side by '17'.
a = 5

Simplifying
a = 5

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