3(2a+5)=2(a+9)

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Solution for 3(2a+5)=2(a+9) equation:


Simplifying
3(2a + 5) = 2(a + 9)

Reorder the terms:
3(5 + 2a) = 2(a + 9)
(5 * 3 + 2a * 3) = 2(a + 9)
(15 + 6a) = 2(a + 9)

Reorder the terms:
15 + 6a = 2(9 + a)
15 + 6a = (9 * 2 + a * 2)
15 + 6a = (18 + 2a)

Solving
15 + 6a = 18 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
15 + 6a + -2a = 18 + 2a + -2a

Combine like terms: 6a + -2a = 4a
15 + 4a = 18 + 2a + -2a

Combine like terms: 2a + -2a = 0
15 + 4a = 18 + 0
15 + 4a = 18

Add '-15' to each side of the equation.
15 + -15 + 4a = 18 + -15

Combine like terms: 15 + -15 = 0
0 + 4a = 18 + -15
4a = 18 + -15

Combine like terms: 18 + -15 = 3
4a = 3

Divide each side by '4'.
a = 0.75

Simplifying
a = 0.75

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