Answer:
x = 8
Step-by-step explanation:
In a triangle, the sum of the interior angles is 180 degrees.
So, for this triangle 180 = 100 + 48 + (5x - 8)
Now let's simplify this down to isolate x. Start by adding 100 and 48.
180 = 148 + (5x - 8)
Now subtract 148 from both sides.
32 = 5x - 8
Add 8 to both sides.
40 = 5x
Divide both sides by 5.
x = 8
