"Unsolvable" Equations( Week 34 Evaluation) 1. If 5 × = 7, what is the value of 35 × ? 2. If x + y + z = 3 and 4x + 6y + 4z = 16, what is the value of y? 3. Suppose 6x + 7y = 7 and 7x + 6y = 32. What is (x + y) = ? 4. If 6x + 3 = 9y + 6, then 2x − 3y = 5. If P + 2Q = R and = 2, what is P + 2Q + 3R =? 6. If 3(5x − 3)2 + 2(4y + 4)2 = 0, what is the value of 5x − 4y? 7. If = , what is the value of ? 8. If x and y are non-zero numbers and 7x2y = 6xy2, then = 9. If (4xy + 5)(4yx − 5) = 7, what is the value of x2y2? 10. If 3(2x − 4) = 6(x − 3m), what is the value of 6m? |