If all the angles add up to 90 degrees then you can set the equation 7x-9*2x=90
Simplify
9x-9=90
Plus 9 both sides
9x=99
Divide by 9 on both sides
X=11
Answer:
Yes
Step-by-step explanation:


and thus the given segments are parallel by the converse of the triangle proportionality theorem.
Multiplication goes first 0.8x1.5=1.2
4+1.2-3= 2.2
Answer: l = 4 cm, w = 7 cm
Step-by-step explanation:
i think that this is it