Question

Evaluate 3x − 5y when x = 3 and y = −2

−19

19

1

−1

Answer 1

These are fun. everywhere you see x in 3x-5y replace it with 3. ditto for y= -2. Then do the arithmetic.

Answer 2

remember 3x really means 3 times x

Answer 3

SO -1

Answer 4

let's see: 3(3) - 5* -2 =?

Answer 5

to do this you can think of it as 3*3 + -5 * -2

Answer 6

19