4x – 7 = 5x + 2
What is X?

X = -9

Step-by-step explanation:

get x by itself by getting it to one side alone

4x - 7 = 5x + 2

subtract 2 from both sides

4x -9 = 5x

subtract 4x from both sides

-9 = x

plug it in to check

4(-9) - 7 = 5(-9) + 2

and they each end up being -43

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet