"Unsolvable" Equations( Week 34 Evaluation) 1. If 9 × = 7, what is the value of 175 × ? 2. If x + y + z = 0 and 3x + 4y + 3z = 8, what is the value of y? 3. Suppose 7x + 4y = 0 and 4x + 7y = 44. What is (x + y) = ? 4. If 12x + 4 = 6y + 16, then 4x − 2y = 5. If P + 2Q = R and = 1, what is P + 2Q + 3R =? 6. If 6(4x − 9)2 + 4(5y + 10)2 = 0, what is the value of 4x − 5y? 7. If = , what is the value of ? 8. If x and y are non-zero numbers and 6x2y = 5xy2, then = 9. If (5xy + 3)(5yx − 3) = 16, what is the value of x2y2? 10. If 2(3x − 3) = 6(x − 3m), what is the value of 6m? |