Question

Evaluate 12x−3y when x=−1/4 and y=3.

Answer 1

-12

Explanation:

12x-3y...

It is straightforward, but you plug in -1/4 and 3 in the equation.

12(-1/4)-3(3)

-3-9

so you get

-12

Answer 2

-12

Explanation:

12x−3y

Let x = -1/4 and y=3

12(-1/4) -3(3)

Multiply

-12/4 -9

Divide

-3-9

Add

-12