Substitute x = -3 and y = -5 into the expression -7y² + 9x

-202

Step-by-step explanation:

-7(-5)^2+9(-3)

-7*5^2-27

-7*25-27

-175-25

-202

the line of

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.