Question

Given that `3a - 2b = 4`, what is the value of `b` when `a = -2`?

Answer 1

`3a-2b=4,a=-2`

Substitute the value to the equation:

`rarr3(-2)-2b=4`

`rarr-6-2b=4`

`rarr-2b=6+4`

`rarr-2b=10`

`b=10/-2=-5` :)