3 years ago

Can someone please help me with this

2 answers:

8 0

70+9x+7-21x-5=0
-12x=-72
x=6

Explanation:
The three inner angles of the triangle add up to 180. And if a straight line is split into two angles, those also add to 180 degrees. So we can make the equation '9x+7 + 70 + 180-(21x+5) = 180'

Lapatulllka [165]3 years ago

3 0

Answer:

The solution is attached up.

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