100
x + 4 = 25
What is 21
100
m +2.4 = 3.7
What is 1.3
200
a + 13 = 20
What is 7
200
x +66.09 = 102.8
What is 36.71
300
k -83 =121
What is 204
400
x + 36 = 100
What is 64
400
x - 327 = 665
What is 338
400
28 = a/13
What is 364
400
c/0.29 = 5.5
What is 1.595
500
67 = c + 27
What is 40
500
a + 163 = 392
What is 229
500
80 = x/15
What is 1200
500
0.12 = y*0.12
What is 1