Question

If 2 angles
3×- 15 and x+ 5 degrees
are supplementary angles then find
the angles.​

Answer 1

Answer:

3x-15+x+5=180°

4x-10=180°

4x=190

x=190/4

x=47.5

so, the first angle

3x-15=3×47.5-15

=127.5

second angle

x+5=47.5+5

=52.5

check the answer

127.5+52.5=180