Question

7a+3 if a= —2 ?

—3y- 9 if Y= —8?

Answer 1

If a= -2, we plug -2 in replacement of a.
7(-2) + 3 = ?
Multiply before adding.
-14 + 3.
-11 is the answer for A.
If y= -8, we plug in -8 in replacement for y.
-3 x -8 (multiplying two negatives makes a positive).
-24 -(9) = ?
Subtracting a negative from a negative is basically adding to the negative.
-33 is the answer for Y.
I hope this helps!

Answer 2

7a+3 if a= —2 ?
7(-2) + 3 = -14 + 3 = -11


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—3y- 9 if Y= —8?
—3(-8) - 9 = 24 - 9 = 15