Question

can someone check my answer?
Evaluate the expression, using the given value of the variable.

4 – 2x + 5x when x = 4

A.
–24

B.
–18

C.
16

D.
28
I got A

Answer 1

mhmmm

Answer 2

show us your work :)

Answer 3

okay!
4-(2x4)+(5x4)=
8+20=28
4-28= -24

Answer 4

Nope

Answer 5

Ah, you see

4 - 8 + 20

we can't do 8 + 20

we have to do - 8 + 20

Answer 6

That's why it's best to do 4 - 8 first :)

Answer 7

so what is 4 - 8 = ?

Answer 8

ohhhhh

Answer 9

4-8= -4

Answer 10

and -4 + 20 = ?

Answer 11

16

Answer 12

And that's your answer :)

Answer 13

ohhh. thanks!!

Answer 14

Anytime! :D

Answer 15

PEMDAS:
1)Parenthesis
2)Exponents
3)Multiply
4)Divide
5)Add
6)Subtract

You would do that in the order for solving these types of equations

Answer 16

Whenever you're left with add and subtraction, you solve from left to right