Answer:
x=28
Step-by-step explanation:
The interior angles of a triangle must add to 180 degrees.
Therefore,
x+95+57=180
Add 95 and 57
x+152=180
We are trying to find x. In order to do this, we must get x by itself. 152 is being added to x. The opposite of addition is subtraction. So subtract 152 from both sides.
x+152-152=180-152
x=180-152
x=28
Let’s check our answer. Add all the angles together, to be sure they add to 180 degrees.
x+95+57=180
Substitute 28 for x
28+95+57=180
180=180
The equation above is true, so we know that x is equal to 28.
