Question

(algebra)can someone help me check these four questions, ill give you fan and medals

Answer 1

first 1

Answer 2

second 1

Answer 3

thrid 1

Answer 4

fourth 1

Answer 5

first correct
second wrong

Answer 6

for the first one Step 2 is incorrect
do you see why?

Answer 7

i have to explain why she is incorrect, thanks i over looked that

Answer 8

you need to isolate x
6x must become x
to do this you DIVIDE 6x by 6

Answer 9

third wrong

Answer 10

Also remember BOTH sides of the equation have to be divided by 6 to preserve the equality.

Answer 11

avi can you explain whats wrong

Answer 12

to get more points for number 1 I would expect you to explain why it was incorrect

Answer 13

forth wrong

Answer 14

AV13 please explain why you think they are right or wrong

Answer 15

for second one you have to add 20 not subtract

Answer 16

i do add

Answer 17

i add -20

Answer 18

you have to add +20

Answer 19

-20 will convert to +20 on taking it to other side

Answer 20

thats what i thought but i wasnt sure

Answer 21

number 2 you already have the correction

Answer 22

same for third one, you havent convert the sign for x and numbers

Answer 23

so number 2s answer would be x = 3

Answer 24

yes

Answer 25

now try all you will get the answer

Answer 26

for third x=5

Answer 27

for fourth infinite soln

Answer 28

number 3 is incorrect
please do not put + -
and you need to write more explain the steps