Question

Answer this Question

Answer 1

Answer:

n = -13

Step-by-step explanation:

√10 - 3n = 7 ⇔

⇔ 10 - 3n = 49 ⇔ We need to remove the square root. Ex: √n = 2 ⇔ n = 2²

⇔  -3n = 49 - 10 ⇔
⇔ -3n = 39 ⇔
⇔ n = $\frac{39}{-3}$ = -13 (as -3 changes members, as it was multiplying, it now divides, conversion).