Use a graph to solve 1/2|x + 1| + 1 = |x|
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Answer: 105 sandwiches can be made from all the peanut butter.
Step-by-step explanation:
Given: Total jars of peanut butter = 21
Part of peanut butter required for each sandwich =
Total number of sandwiches made = ( Total jars of peanut butter ) ÷ (Part of peanut butter required for each sandwich)
Hence, 105 sandwiches can be made from all the peanut butter.