2. Solve problems involving relationships among unknown quantities, 3. Solve problems involving consecutive integers,
Key Examples:
1. Solve.
a) Eight is added to a number and the sum is doubled; the result is 11 less than the numbers,
Find the number,
b) Three times the difference of a number and 2 is equal to 8 subtracted from twice the number.
Find the number,
2. Solve.
a) A college graduating class is made up of 450 students. There are 206 more girls than boys.
How many boys are in the class?