100
x + 4 = 25
What is 21
100
m - 3.7 = 2.4
What is 6.1
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 992
400
28 = a/13
What is 364
400
c/0.29 = 5.5
What is 1.595
500
-27 = c + 27
What is -54
500
a - (-163) = -392
What is -555
500
-21y = -756
What is 36
500
-80 = x/15
What is -1200
500
-0.12 = y/0.12
What is -0.0144