algebra
5 + a = 7
a = 2
irfan has a bag of 20 sweets 10 of the sweets are red 3 of the sweets are back the rest of sweets are white irfan chooses one sweet at random. what is the probility that irfan will choose a red sweet
the probility of choosing a red sweet is 1/2
3x + 1= 10
x = 3
2x + 3=
6