Question

Find the value of 3a + 2b -3 when a=-5 and b=-6

Answer 1

Answer: -30.

Explanation:

We start by multiplying 3 by -5 and 2 by -6.

So the new equation will be
`-15-12-3`.

Then, we can either minus -12 by -3 or we can minus -15 by -12. Either way, we get the right answer.

`-15-12=-27`

Then, the new equation will be
`-27-3`.

`-27-3 = -30`.

Answer:
`-30`.

Answer 2

-30

Explanation:

Substituting values of a and b in equation

3(-5)+2(-6)-3

-15-12-3

-15-15

-30