3b - c +5 if c= - 4, b=2.

Mathematics

1 answer:

AnnZ [28]2 years ago

3 0

Answer:

Step-by-step explanation:

To find the answer, plug the values of each variable into the equation and simplify. It may be easiest to plug one variable in at a time, simplify, then plug the next variable in. Remember, if the equation is asking you to subtract a negative number, the negatives cancel and you want to add the numbers.

b = 2 c = -4

3b - c + 5 <----- Original expression

3(2) - c + 5 <----- Plug 2 in for "b"

6 - c + 5 <----- Multiply 3 and 2

11 - c <----- Add 6 and 5

11 - (-4) <----- Plug -4 in for "c"

15 <----- Add 11 and 4

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