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Easy substitution
Medium substitution
Hard substitution
Easy PEMDAS
Hard PEMDAS
100

20x+30=          

X=2 

70 

100

50+50+50+50x

x=5

1,000

100

56+x+y+z

X=56

Y=22

z=23

a) 150

b)157

c)122

d)156

100

[(66+88)-62]8

736

100

[(72x2)+4-(63/9)]4

564

200

4/2x

x=2

4

200

60+1,000-x

x=101

959

200

(88)(x)(x)

x=66

383,328

200

(23-4)+(6x4/3)

27

200

(32)4+13+(24/6-3)-6

44

300

If x=8 then what does 2+2+2+x=

14

300

172/2(x)

x=100

8,600


300

888+x+y=

x=253

y=879

2020


300

(63/7+5- 1/2)3

40 1/2

300

(33)5-(108/12)

126

400

8+8-x

x=3

13

400

8x64+x+x

x=400

1,312

400

600x

x=1000

600,000

400

43 x 5(15/3)2

8,000

400

62(4/2+6-1)3+54

12,402

500

16+16+16-x

x=8

40

500

600x20/x

x=2

6,000

500

500(6)(6)(x)

x=20

360,000

500

(42)1/2(64/4x3)2

18432

500

4+3(42-3)6x12(3x9)-2

75,818