2 years ago

How do I start the equation?

Mathematics

2 answers:

algol [13]2 years ago

7 0

Answer:

x = 8

Step-by-step explanation:

40 + 6x + 2 = 90° because these angles are complementary

6x = 90 - 42

6x = 48 divide both sides by 6

x = 8

Mariana [72]2 years ago

4 0

Answer:

Step-by-step explanation:

Well they add up to a straight line which would be 180 degrees. That means 40, 6x+2 and 90 all add up to 180

40 + 90 + 6x + 2 = 180

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