The two angles form a straight line which is equal to 180 degrees. This makes the angles supplemtary.
To find x, add the two angles together to equal 180:
7x + x+20 = 180
Combine like terms:
8x + 20 = 180
Subtract 20 from both sides:
8x = 160
Divide both sides by 8:
X = 20
Answer:
the missing side of the rectangle should be twelve
Step-by-step explanation:
thats the graph for the equation.
hope it helps
Answer:
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Answer:
3
3
5
2
Step-by-step explanation:
What kind of math is this and what grade are you in?
