Answer: 
Step-by-step explanation:

Remove all those parentheses by multiplying. Note: 2 and 2 cancel out.

Subtract 2x

Combine like terms;

Divide by -3

Rewriting it;

Answer:
The sale price of a $90 item after a 50% discount is $45.
Let's solve your equation step-by-step.
9x=10
Step 1: Divide both sides by 9.
9x / 9 = 10 /9
x = 10 / 9
Answer:
x = 10 / 9
Answer:
10 kiloliter to liters, the result is 10000 liters
if i helped then please give brainliest and a thanks!