Question

Fan & Medal

Simplify: 3u+ 7v+ 4u- 2v
A.7u+v
B.7u + 9v
10u-2v
12uv

Answer 1

you just have to add the like terms, i.e. those with the same variable

Answer 2

Yeah it's just a matter of doing like terms

Answer 3

\[3u+ 7v+ 4u- 2v \]

Answer 4

@LOLAri Do you know what like terms are?

Answer 5

3u 4u and 7v 2v

Answer 6

yes, add the u's and the v's together then you have your answer

Answer 7

I thought it was 12uv??

Answer 8

@kshirley

Answer 9

no you cannot combine u and v unless it's by multiplication/division since they are not like terms

Answer 10

they must remain separated by an addition/subtraction sign, so just add the u's and the v's and keep the two different terms separated since you cannot combine them

Answer 11

But what if the things are different like one is add and one is subtract do i just all add??

Answer 12

@ kshirley

Answer 13

it doesn't matter if one is add or one is subtract, the sign in front of the term stays with it, i.e. if i have 4-x, it would be -x+4 if i switched the order

Answer 14

@LOLAri

Answer 15

Ohhh ok thnx.

Answer 16

So if the equation was 6y+ 5z +8y - 3z it would be 14y+2z @kshirley

Answer 17

EXACTLY!!!! good job :) @LOLAri

Answer 18

3u+ 7v+ 4u- 2v check your signs should that be + 2v to get choice B ?

Answer 19

good job on the 2nd one it shows you know how now