The equation for this would be:
y+6= 1/5(x+7)
the answer is the third option, starting with degree 11.
Answer:
x= 20
Step-by-step explanation:
The three angles add to 90 degrees
x+2x+x+10 = 90
Combine like terms
4x+10 = 90
Subtract 10 from each side
4x +10-10 = 90-10
4x = 80
Divide by 4
4x/4 = 80/4
x = 20
You can because you already know the number is 3 and the blank number is n