Miscellaneous
                The inverse of addition
What is subtraction?
12s + 2 = 146
What is 12 ?
g/11 + 3 = 9
What is 66 ?
y/6 - 8 = 52
What is 360 ?
The difference between an EXPRESSION and an EQUATION
What is an EQUAL SIGN?
5b + 300 = 550
What is 50 ?
20q - 40 = 60
What is 5 ?
w/30 + 5 = 12
What is 210?
d/10 - 83 = 64
What is 1470 ?