"Unsolvable" Equations( Week 34 Evaluation) 1. If 9 × = 10, what is the value of 500 × ? 2. If x + y + z = 10 and 3x + 4y + 3z = 39, what is the value of y? 3. Suppose 9x + 8y = 2 and 8x + 9y = 66. What is (x + y) = ? 4. If 9x + 1 = 12y + 4, then 3x − 4y = 5. If P + 2Q = R and = 5, what is P + 2Q + 3R =? 6. If 6(5x − 9)2 + 5(6y + 1)2 = 0, what is the value of 5x − 6y? 7. If = , what is the value of ? 8. If x and y are non-zero numbers and 6x2y = 7xy2, then = 9. If (5xy + 2)(5yx − 2) = 71, what is the value of x2y2? 10. If 3(2x − 4) = 6(x − 2m), what is the value of 2m? |