One way to estimate is by rounding to the nearest hundreds. (400 + 200), The other way is by rounding to the nearest tens (360 + 230). I hope this helped you out and answered your question! Good luck!
Answer:
x=-7.5
Step-by-step explanation:
First you distribute
1/5x + 1/4 = 1/2x + 2.5
Then you subtract 1/5x from both sides
1/4 = 0.3x + 2.5
Then you subtract 2.5 on both sides
-2.25=0.3x
You divide 0.3 on both sides to get x by itself
-7.5=x
