Answer:

20

Step-by-step explanation:

Write the equation and the given.

Equation: 5x - 2y + 1 = ?

Given: x = 3, y = -2

Then, substitute.

5(3) - 2(-2) + 1 = ?

5(3) = 15

-2(-2) = 4 because negative times negative is equal to positive.

Lastly, combine like terms.

15 + 4 + 1 = ?

Answer = 20

answer:

20

step-by-step explanation:

11 x y = ?

11+10 = 21-1 =y?

21-1=20