Answer:
x = 12
Step-by-step explanation:
This is a multi-step equation.
The first thing we can do is add 9 to both sides, eliminating the -9 from the left side of the equation. Now we have 7x = 84.
You can divide 84 over 7x to get a total of x =12.
Step 1: Add 9 to both sides.
Step 2: Divide both sides by 7.
Step 3: Check if solution is correct.
Therefore, x = 12.
yes
i dont know
α + β = 180°
∠BFE and ∠FBC
∠CEF and ∠BCE
the area is L x W so its 42cm