one step equations

adding

100

5+x=8

What is X=3

200

8+y=13

What is X=5

300

20+x=80

What is X=60

400

100+y=650

What is X=550

500

1309+X=5000

What is X=3691

subtracting

100

9-y=8

What is X=1

200

x-21=10

What is X=31

300

30-Y=20

What is X=10

400

y-40=15

What is Y=55

500

5 - x=-12

What is X=-7

multiplication

100

4x=16

What is x=4

200

8y=40

What is X=20

300

7x=14

What is X=2

400

10y=60

What is Y=6

500

9x=54

What is x=6

division

100

x/4=10

What is 40

200

y/5=15

Y=75

300

x/7=14

X=98

400

y/9=18

What is Y=162

500

x/10=100

Wat is x=1000