Answer:
12°
Step-by-step explanation:
First, the diagram shows 90° and it divided by the line. We need to find what is the value of x.
To find the value of x, we can write like this:
(x+42°)+3x=90°
Then, we need to find the same variable like x and collect the like terms.
4x+42°=90°
And move 42 to the right side and it becomes like this:
4x= 90°-42°
Divides both sides by 4
4x=48
x=12
That is the solution of you problem. I hope you will understand it.
