Question

Evaluate the expression when x = 3 and y = –5.

4x – 3y

A.
–3

B.
–1

C.
27

D.
15

Answer 1

\[\large 4x - 3y\]

when x = 3 we have

4 times x...becomes 4 times 3...so that is 12

and when y = -5 we have

3 times y becomes 3 times -5 so that is -15

so what we have is

\[\large 12 - (-15)\]
\[\large 12 + 15 = ?\]