7x - 3y = 24
7x - 24 = 3y
(7x - 24) : 3 = y
A4 means the 4th number
so it is 17
for these kinds of problems the outside angle always equals the opposite 2. meaning angle x=64+70 which is 134 degrees. you can double check this because all triangles equal 180 degrees. meaning that the last angle in the triangle is 46. 46+70+64=180.
so your answer is 134.
hope this helps :)
35.53 is the answer I hoped that helped
