4(3a+5)=5(3a-5)

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Solution for 4(3a+5)=5(3a-5) equation:


Simplifying
4(3a + 5) = 5(3a + -5)

Reorder the terms:
4(5 + 3a) = 5(3a + -5)
(5 * 4 + 3a * 4) = 5(3a + -5)
(20 + 12a) = 5(3a + -5)

Reorder the terms:
20 + 12a = 5(-5 + 3a)
20 + 12a = (-5 * 5 + 3a * 5)
20 + 12a = (-25 + 15a)

Solving
20 + 12a = -25 + 15a

Solving for variable 'a'.

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

Add '-15a' to each side of the equation.
20 + 12a + -15a = -25 + 15a + -15a

Combine like terms: 12a + -15a = -3a
20 + -3a = -25 + 15a + -15a

Combine like terms: 15a + -15a = 0
20 + -3a = -25 + 0
20 + -3a = -25

Add '-20' to each side of the equation.
20 + -20 + -3a = -25 + -20

Combine like terms: 20 + -20 = 0
0 + -3a = -25 + -20
-3a = -25 + -20

Combine like terms: -25 + -20 = -45
-3a = -45

Divide each side by '-3'.
a = 15

Simplifying
a = 15

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