100
X + 2 = 10
What is 8?
200
X + 15 = 37
What is 22
200
X - 10 = 29
What is 39
200
X /4 = 12
What is 48?
300
X + 19 = 50
What is 31
300
X -15 = 30
What is 45
300
X/15 =30
What is 450?
300
X- 10 = 32
What is 42?
400
X + 50 = 89
What is 39?
400
X - 22 = 31
What is 53?
400
x/25 = 4
What is 100?
500
2X + 3X = 45
What is 9?
500
x/40 = 40
What is 1600?
500
5X + 4X =90
What is 10?