"Unsolvable" Equations( Week 34 Evaluation) 1. If 9 × = 6, what is the value of 30 × ? 2. If x + y + z = 7 and 4x + 3y + 4z = 24, what is the value of y? 3. Suppose 9x + 8y = 5 and 8x + 9y = 46. What is (x + y) = ? 4. If 6x + 2 = 4y + 12, then 3x − 2y = 5. If P + 2Q = R and = 4, what is P + 2Q + 3R =? 6. If 9(4x − 5)2 + 9(3y + 4)2 = 0, what is the value of 4x − 3y? 7. If = , what is the value of ? 8. If x and y are non-zero numbers and 7x2y = 6xy2, then = 9. If (4xy + 4)(4yx − 4) = 48, what is the value of x2y2? 10. If 3(4x − 4) = 12(x − 5m), what is the value of 10m? |