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Help please I don’t understand it

Help please I don’t understand it-example-1
User Ernesto
by
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1 Answer

3 votes

Answer:

15) 30

16) 2

for 15 you plug the -4 into the variable (x)

so...

-4(-4)-4-2-5(-4)

you do multiplication first because of PEMDAS

so -4×-4=16 it is not negative because there 2 negatives so they cancel out

then -5×-4=20

then you get this:

16-4-2+20 which equals 30

then with 16 you do the same. you just put the number for y in the variable y and same with x

User HitLuca
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