Question

The measures of two complementary angles are 6x − 7 and 9x − 8. Find x.
7
13*myanswer
35
65

Answer 1

What lesson is this? I think I have already done it.

Answer 2

Lesson 8 unit 2

Answer 3

Its A-7

Answer 4

You already did it?

Answer 5

No I don't have a Lesson 8 but I think I remembered doing this before.

Answer 6

Can you explain how it's A?

Answer 7

If the two angles are complementary, then they add up to 90.
(6x-7) plus (9x-8) = 90, so 6x plus 9x = 105.
6 plus 9 = 15, so 15x = 105.

Answer 8

Then 105/15=7