4(a-5)=5(5+2a)

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


Simplifying
4(a + -5) = 5(5 + 2a)

Reorder the terms:
4(-5 + a) = 5(5 + 2a)
(-5 * 4 + a * 4) = 5(5 + 2a)
(-20 + 4a) = 5(5 + 2a)
-20 + 4a = (5 * 5 + 2a * 5)
-20 + 4a = (25 + 10a)

Solving
-20 + 4a = 25 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
-20 + 4a + -10a = 25 + 10a + -10a

Combine like terms: 4a + -10a = -6a
-20 + -6a = 25 + 10a + -10a

Combine like terms: 10a + -10a = 0
-20 + -6a = 25 + 0
-20 + -6a = 25

Add '20' to each side of the equation.
-20 + 20 + -6a = 25 + 20

Combine like terms: -20 + 20 = 0
0 + -6a = 25 + 20
-6a = 25 + 20

Combine like terms: 25 + 20 = 45
-6a = 45

Divide each side by '-6'.
a = -7.5

Simplifying
a = -7.5

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