5(15+a)=4(3-4a)

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Solution for 5(15+a)=4(3-4a) equation:


Simplifying
5(15 + a) = 4(3 + -4a)
(15 * 5 + a * 5) = 4(3 + -4a)
(75 + 5a) = 4(3 + -4a)
75 + 5a = (3 * 4 + -4a * 4)
75 + 5a = (12 + -16a)

Solving
75 + 5a = 12 + -16a

Solving for variable 'a'.

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

Add '16a' to each side of the equation.
75 + 5a + 16a = 12 + -16a + 16a

Combine like terms: 5a + 16a = 21a
75 + 21a = 12 + -16a + 16a

Combine like terms: -16a + 16a = 0
75 + 21a = 12 + 0
75 + 21a = 12

Add '-75' to each side of the equation.
75 + -75 + 21a = 12 + -75

Combine like terms: 75 + -75 = 0
0 + 21a = 12 + -75
21a = 12 + -75

Combine like terms: 12 + -75 = -63
21a = -63

Divide each side by '21'.
a = -3

Simplifying
a = -3

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