Question

Answer this quettion about x

Answer 1

x = 13

Explanation:

The sum of the two angles is 90 degrees since it is a right angle

3x+ 4x-1 = 90

Combine like terms

7x -1 = 90

Add 1 to each side

7x-1+1 = 90+1

7x = 91

Divide each side by 7

7x/7 = 91/7

x = 13