Question

Evaluate 2x − y when x = 3 and y = −2

Answer 1

jst substitute the values of x and y in 2x − y

Answer 2

is it 4? or negative 4

Answer 3

I get confused with the signs

Answer 4

2x-y=2(3)-(-2)=6+2

Answer 5

(-)*(-)=(+)
(+)(-)=(-)
(-)(+)=(-)
(+)(+)=(+)

Answer 6

is that clear nw?

Answer 7

Yes.