a train traveled 145 miles in 4.2 hours. to the nearest tenth, what was the average speed of the train in miles per hour?
1 answer:
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C.) x = -4 is the correct answer
Step-by-step explanation:
In order to solve the equation we have to isolate x on one side of equation
Given
7x + 6 = -22
Subtracting 6 from both sides
Dividing both sides by 7
Hence,
C.) x = -4 is the correct answer
Keywords: Linear equation
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