1
2
3
4
5
100

3m+2m-5=20

m = 3

100

2(x-2)+3=9

x=5

100

5(2x+4)+2=8

-7/5

100

7y+4=25

y=3

100

3a+7=25

a=6

200

6+2a+5=9

a=-1

200

4(2d=1.5)-3=17

d=7/4

200

10=2.5-3(k-12)

9.5

200

3m+5=20

m=5

200

8c+4=28

c=3

300

12+.6d+8=20

d=0

300

0.5+0.3p+0.7=1.5

p=1

300

12=2+3y+1

y=3

300

3b+9=21

b=4

300

2m-6=10

m=8

400

15=6b-2.5b+1

b=4

400

2(z+1.5)+0.5z=9

z=2.4

400

2x+6=14

x=4

400

6k+9=27

k=3

400

9x-5=22

x=3

500

0.8a+0.3a-0.5=1.7

a=2

500

4(y+2)-3y=15

y=7

500

5n+8=23

n=3

500

6p+1=37

p=6

500

4y-7=9

y=4

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