Evaluate 3xy + b if x = -4 ,y = 2 , and b = 5

Mathematics

1 answer:

olga2289 [7]2 years ago

3 0

Answer:

-19

Step-by-step explanation:

ok so since they give you all the variables you can substitute their values

for example instead of 3xy you can write 3*(-4)y

so that is the basic idea for this problem

after substituting, the new equation is 3*(-4)*2 +5

i plan on using order of operations, or PEMDAS

3*(-4)=(-12)

(-12)*2=(-24)

-24+5=-19

so the answer is -19

hope this helps!

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Step-by-step explanation:

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