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7. Find x and y. I can’t figure these out pls help
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7. Find x and y. I can’t figure these out pls help

7. Find x and y. I can’t figure these out pls help-example-1
User Preexo
by
3.7k points

2 Answers

4 votes

Answer:

X=4 y=11

Explanation:

9y+5+18x+4=180 9y=171-18x

9y-9+21x+6=180 9y=183-21x

171-18x=183-21x

3x=12 x=4 9y=171-72=99 y=11

User Tomlogic
by
4.2k points
4 votes

Answer:

Explanation:

5. The opposite angles of a cyclic quadrilateral sum to 180 so

9y + 5 + 18x + 4 = 180 and

9y - 9 + 21x + 6 = 180

Solve this system to find x and y.

7. Solved in the same way.

Have to go right now so i cant help you any further.

User Nicktar
by
4.7k points
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