when 7 times a number is decreased by 13, the answer is the same as 5 times the number is increased by 5. what was the number?
2 answers:
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Answer:
Step-by-step explanation:
Let
w ----> the amount of weight lost in pounds
we know that
The amount of weight Bernard lost plus the weight of this week must be equal to the weight of the last week
so
The linear equation that represent this situation is
solve for w
subtract 2,312 both sides