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X
Double points
100

22+8=?

30

100

16-8=?

8

100

25/5=?

5

100

20X10=?

200

100

X-5=10

What is X?

X=15

200

6+4+7=?

17

200

40-10-5=?

25

200

36/9=?

4

200

12X12=?

144

200

42+16=?

32

300

2+10+30+45=?

87

300

100-70-28=?

2

300

56/8=?

7

300

12X-6=?

-72

300

4x+5=17

What is X?

X=3

400

-40+50=?

10

400

66-11-20=?

35

400

-100/-10=?

10

400

3X3X3=?

27

400

52+42x2=?

57

500

-67+42=?

-25

500

60-40-10-98=?

-88

500

108/-9=?

-12

500

-50X-5X10X1=

2500

500

15-4x-6x=2(3x+1)

Solve for x

X=13/16 or X=0.813