What is the answer to this

Work Shown:

Focus on triangle DEC. We have angle C is 48 and D is 74. Let's find angle E.

D+E+C = 180

74+E+48 = 180

E+122 = 180

E = 180-122

E = 58

In the sequences ABC and DEC, we have B and E as the second letters. The order is important because the angles must align properly (so we know how they pair up). Therefore, angle B = angle E because triangle ABC = triangle DEC.

Furthermore,

angle B = angle E

2x = 58

x = 58/2

x = 29

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

i’m here for points.