4(5-2a)=a-25

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Solution for 4(5-2a)=a-25 equation: 


Simplifying
4(5 + -2a) = a + -25
(5 * 4 + -2a * 4) = a + -25
(20 + -8a) = a + -25

Reorder the terms:
20 + -8a = -25 + a

Solving
20 + -8a = -25 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
20 + -8a + -1a = -25 + a + -1a

Combine like terms: -8a + -1a = -9a
20 + -9a = -25 + a + -1a

Combine like terms: a + -1a = 0
20 + -9a = -25 + 0
20 + -9a = -25

Add '-20' to each side of the equation.
20 + -20 + -9a = -25 + -20

Combine like terms: 20 + -20 = 0
0 + -9a = -25 + -20
-9a = -25 + -20

Combine like terms: -25 + -20 = -45
-9a = -45

Divide each side by '-9'.
a = 5

Simplifying
a = 5

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