Answer:
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Hi!
Since you’ve been left with x’s on both sides of your equation, you would now want all of your x’s on one side. Since it would be easiest to get rid of the -3x on the right, you would add 3x on each side of the equation. This would result in your equation now being 10x=120. To get x on its own, you need to divide each side by 10, giving you x=12 as your final answer. Hope this helps!! :)
Answer:
Step-by-step explanation:
<u>Scale is:</u>
- 1 foot = 3/4 inch
- 1 inch = 1 : 3/4 foot = 4/3 foot
a. The length of the room
- 9 inches = 9*4/3 foot = 12 feet
b. The width of the room
- 6 3/4 inches = 27/4 inches = 27/4*4/3 = 9 feet