Question

PLEASE HELP(plssss easy math pls)

Answer 1

3x-12+57=90 
3x+45 =90
    -45  -45 
  3x= 45
  x=15

<MNQ= 33 because 90-57=33

Please mark as brainliest! 
Hope this helped!:))

Answer 2

Answer:

3x-12+57=90

3x+45 =90

-45 -45

3x= 45

x=15

X equals to 15

<MNQ= 33 because 90-57=33

Step-by-step explanation:

I hope I can help you :)