Question

Answer 1, 2, 3, 6. That’s it

Answer 1

(1)

`\frac{49}{ {x}^(2) } = 1 \\ 49 = 1 * {x}^(2) \\ {x}^(2) = 49 \\ x = 7`
The answer is x = 7

(2)

`{x}^(2) = 196 \\ x = 14`
The answer is x = 14

(3)

`(44)/(13 - x) = 4 \\ 44 = 4(13 - x) \\ 44 = 52 - 4x \\ 4x = 52 - 44 \\ 4x = 8 \\ x = (8)/(4) \\ x = 2`
The answer is x = 2

(5)

`√(2x + 7) = 5 \\ {( √(2x + 7) })^(2) = {5}^(2) \\ 2x + 7 = 25 \\ 2x = 25 - 7 \\ 2x = 18 \\ x = (18)/(2) \\ x = 9`
The answer is x = 9