5x+2-{3x+1+2(4x+1-3x+1)}
​

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up

Afarmer has 5 times as many cows as pigs. the farmer only has cows and pigs, and he has 168 animals. how many cows does he have?

Multiply the polynomials (x+3)(x^2-6x+5)