Question

Please help :( if you can please also give a explanation. thanks

Answer 1

Answer:

x = 20

Step-by-step explanation:

since the triangle is a right angle, that means the angle is 90 degrees

equation:

30 + 3x = 90

subtract 30 on both sides

30 - 30 + 3x = 90 - 30

3x = 60

then divide each side by 3

$\frac{3x}{3} = \frac{60}{3}$

x = 20