1 answer
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The correct equation is:
180 - 20x = 140 - 16x
To solve for x, we can combine like terms:
180 + 16x = 140 + 20x
Now, we can subtract 16x from both sides:
180 = 140 + 4x
Next, we can subtract 140 from both sides:
40 = 4x
Finally, we can divide both sides by 4:
10 = x
Therefore, the two machines will have the same amount of ice cream left after 10 days.