Question

What is the value of the expression when a = 6 and b = 4?
*I wrote down some of the answers i think it is*

Answer 1

These are my answer choices.
1. 52
2. 98
3. 66
4. 83.875

Answer 2

It should be 52

Answer 3

replace the numbers with the variables
14[6]-2(3[4]-4)

Answer 4

Given:
\[\Large \color{red}{a} = \color{red}{6}\]
\[\Large \color{blue}{b} = \color{blue}{4}\]
-------------------------------
Replace every 'a' with 6. Replace every 'b' with 4. Then evaluate
\[\Large 14a - 2(3b+4)\]
\[\Large 14*\color{red}{a} - 2*(3*\color{blue}{b}+4)\]
\[\Large 14*\color{red}{6} - 2*(3*\color{blue}{4}+4)\]
I'll let you evaluate.

Answer 5

I did

Answer 6

and if you do PEMEDAS you should get 52

Answer 7

Show your steps so we can see what you have

Answer 8

What was confusing me was the 14 x 6 - 2 next to the (3 x 4 + 4) I didn't know if I was supposed to multiply it because they were right next to each other. So I put those other answers because they were Multiplication, Addition, Subtraction, and Division. But now I know that it is multiplication and it's 52. Thank You :]

Answer 9

I'm not sure I follow correctly, but you use PEMDAS to evaluate the expression

P = parenthesis
E = exponents
M = multiplication
D = division
A = addition
S = subtraction

the P for parenthesis comes first, so you do everything in the parenthesis first

focusing on 3*4+4, we do the multiplication first since M comes before A. Then we add
so, 3*4+4 = 12+4 = 16

this all means

14*6 - 2*(3*4+4)

turns into

14*6 - 2*16

Answer 10

then you keep using PEMDAS to evaluate 14*6 - 2*16

Answer 11

Yes and that equals 52

Answer 12

correct

Answer 13

thank you :) if i need help with more do you think you can help me?

Answer 14

sure, just post if you have a question

Answer 15

Should I post it on this question or on a different one and tag you in it?

Answer 16

if it's a separate question, it is better to make a brand new post to avoid clutter and lag

Answer 17

Okay I will do that. Thank you

Answer 18

np