Mathematics 7
Solving Problems involving Equations in One Variable - Week 6
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Number Problem
1. The sum of a number and 38 is 123.
2. The product of 5 and a number is four times
Find the number
the number plus seven. Find the number.
Answers & Comments
Answer:
1. n + 38 = 123
n = 123 - 38
n = 85
2. 5n = 4n + 7
5n - 4n = 7
n = 7