4a+8b=20

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Solution for 4a+8b=20 equation: 


Simplifying
4a + 8b = 20

Solving
4a + 8b = 20

Solving for variable 'a'.

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

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

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

Divide each side by '4'.
a = 5 + -2b

Simplifying
a = 5 + -2b

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