Question

Evaluate the following expression using the given values:
Find x - 3y if x = 3 and y = -2.

a. -9
b. -3
c. 3
d. 9

Answer 1

9

Answer 2

Why not substitute the values and see?!

Answer 3

\(\large\color{black}{ x - 3y }\)
you are given that \(\large\color{blue}{ x=3 }\) and \(\large\color{red}{ y=-2 }\)

So,
\(\large\color{black}{ \color{blue}{3} - 3( \color{red}{-2}) }\)

\(\large\color{black}{ 3 - (-6) }\)

\(\large\color{black}{ 3 +6 }\)

\(\large\color{black}{ 9. }\)