"Unsolvable" Equations( Week 34 Evaluation) 1. If 7 × = 9, what is the value of 90 × ? 2. If x + y + z = 11 and 3x + 4y + 3z = 36, what is the value of y? 3. Suppose 8x + 10y = 8 and 10x + 8y = 64. What is (x + y) = ? 4. If 15x + 2 = 6y + 17, then 5x − 2y = 5. If P + 2Q = R and = 1, what is P + 2Q + 3R =? 6. If 8(4x − 6)2 + 3(6y + 7)2 = 0, what is the value of 4x − 6y? 7. If = , what is the value of ? 8. If x and y are non-zero numbers and 8x2y = 9xy2, then = 9. If (2xy + 4)(2yx − 4) = -8, what is the value of x2y2? 10. If 2(6x − 12) = 12(x − 4m), what is the value of 4m? |