Question

How do you find x - 3y if x = 3 and y = -2?

Answer 1

9

Explanation:

substitute the values x = 3 and y = - 2 into the expression x - 3y

`rArr 3 -3 (- 2 ) = 3 + 6 = 9`

`-3( -2 ) = -3 xx - 2 = 6`