How do you solve 5a+3-3a=-7?

Mar 9, 2017

$a = - 5$

Explanation:

Original Equation: $5 a + 3 - 3 a = - 7$

$5 a$ and $- 3 a$ are like terms, so you can combine them

$2 a + 3 = - 7$

Now, you only have one term with a variable, and just solve for $a$ by subtracting both sides by $3$ then dividing by the coefficient of $a$

$2 a = - 10$

So,

$a = - 5$