3-4a=5(a+3)

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


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

Reorder the terms:
3 + -4a = 5(3 + a)
3 + -4a = (3 * 5 + a * 5)
3 + -4a = (15 + 5a)

Solving
3 + -4a = 15 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
3 + -4a + -5a = 15 + 5a + -5a

Combine like terms: -4a + -5a = -9a
3 + -9a = 15 + 5a + -5a

Combine like terms: 5a + -5a = 0
3 + -9a = 15 + 0
3 + -9a = 15

Add '-3' to each side of the equation.
3 + -3 + -9a = 15 + -3

Combine like terms: 3 + -3 = 0
0 + -9a = 15 + -3
-9a = 15 + -3

Combine like terms: 15 + -3 = 12
-9a = 12

Divide each side by '-9'.
a = -1.333333333

Simplifying
a = -1.333333333

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