Question

20 POINTS AND BRAINLIEST!

Answer 1

Answer:

x=12

Step-by-step explanation:

Since it is on a right angle we can equate the sum of these 2 angles to 90:

3x+x+42=90

Simplify:

4x+42=90

Subtract 42 from both sides:

4x+42-42=90-42

Simplify:

4x=48

Divide both sides by 4

4x÷4=48÷4

Simplify

x=12

Answer 2

Answer:

Step-by-step explanation:

The overall angle in total is 90 degrees. The angles 'x+42' and '3x' equal ninety degrees, so we get the equation:

x + 42 + 3x = 90

4x + 42 = 90

4x = 48

x = 12

Hope that helps!