Question

(4a – b) + (3a – 5b)

3a – 2b
a + 4b<------answer?
7a – 6b
7a + 4b

Answer 1

7a-6b

Answer 2

I have 4 a's then I add 3 more, how many do I have?

Answer 3

\(\Large \color{MidnightBlue}{\Rightarrow 4a - b + 3a - 5b }\)

Do you know what like terms are?

Answer 4

how do you get that mellylol

Answer 5

4a and 3a are like terms.
-b and -5b are like terms.
Operate on them individually.

Answer 6

4a+3a=7a
-b+-5b=-6b
7a-6b

Answer 7

\(\Large \color{MidnightBlue}{\Rightarrow (4a + 3a) + (-b - 5b) }\)
\(\Large \color{MidnightBlue}{\Rightarrow 7a - 6b }\)

Answer 8

i thought its like this

(4a-b)+(3a-5b)

4a - 3a

b - 5b

Answer 9

@ZhangYan That was easy.

Answer 10

(4a - 1b) + (3a - 5b)
4a - 1b + (3a - 5b)
4a - 1b + 3a - 5b
4a + 3a - 1b - 5b
7a - 1b - 5b
7a - 6b

Answer 11

It's actually -b - 5b. Never change the sign.

Answer 12

because they are in parenthesis and there is an addition sign in between shows you that you have to add them straight out

Answer 13

ok thanks you guys your information helps :D i'm just confusing cause my teacher didn't tell me about it well....

Answer 14

See, @ZhangYan
If it's written as x, then it is +x
If it's written as -x, then it is ONLY -x.

Answer 15

You can move it around.

Answer 16

^ Only if you don't change the sign.

Answer 17

oops actually:
(4a - b) + (3a - 5b)
4a - b + (3a - 5b)
4a - b + 3a - 5b
4a + 3a - b + 5b
7a - b + 5b
7a - 6b

Answer 18

all right thanks so much parthkohli and drkole and mellylol and eyust

Answer 19

but i don't know how to give you all medals ;/ i have to give 1 medal :/

Answer 20

we can all give eachother medals...

Answer 21

Give it to the one who deserves the most.

Answer 22

lol that too

Answer 23

i'll give parthkohli a medal cause he helps me understand more :D

Answer 24

:) thank you, all of them did some nice work :D

Answer 25

good show, no hard feelings.