"Unsolvable" Equations( Week 34 Evaluation) 1. If 6 × = 9, what is the value of 270 × ? 2. If x + y + z = -4 and 3x + 4y + 3z = -7, what is the value of y? 3. Suppose 6x + 7y = 6 and 7x + 6y = 33. What is (x + y) = ? 4. If 6x + 4 = 9y + 10, then 2x − 3y = 5. If P + 2Q = R and = 1, what is P + 2Q + 3R =? 6. If 2(5x − 4)2 + 8(3y + 5)2 = 0, what is the value of 5x − 3y? 7. If = , what is the value of ? 8. If x and y are non-zero numbers and 8x2y = 9xy2, then = 9. If (2xy + 3)(2yx − 3) = 11, what is the value of x2y2? 10. If 3(3x − 6) = 9(x − 5m), what is the value of 10m? |