"Unsolvable" Equations( Week 34 Practice) 1. If 8 × = 10, what is the value of 350 × ? 2. If x + y + z = 5 and 4x + 2y + 4z = 12, what is the value of y? 3. Suppose 5x + 7y = 0 and 7x + 5y = 48. What is (x + y) = ? 4. If 7(4x − 3)2 + 9(3y + 2)2 = 0, what is the value of 4x − 3y? 5. If = , what is the value of ? |