"Unsolvable" Equations( Week 34 Evaluation) 1. If 5 × = 6, what is the value of 180 × ? 2. If x + y + z = -8 and 3x + 2y + 3z = -24, what is the value of y? 3. Suppose 9x + 6y = 7 and 6x + 9y = 38. What is (x + y) = ? 4. If 4x + 4 = 10y + 10, then 2x − 5y = 5. If P + 2Q = R and = 3, what is P + 2Q + 3R =? 6. If 9(4x − 9)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 5x2y = 4xy2, then = 9. If (3xy + 1)(3yx − 1) = 17, what is the value of x2y2? 10. If 2(5x − 15) = 10(x − 2m), what is the value of 4m? |