9514 1404 393
Answer:
Step-by-step explanation:
In each case, you divide by the coefficient of x. Here, dividing by -1/7 is the same as multiplying by -7.
The first two answers are correctly chosen.
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Then the ratio of the solutions is 63.7/1.3 = 49, easily calculated from the numbers given.
The second solution is 49 times the first.
