A driver is going to drive 100 miles. if they drive the first 50 miles at 50 miles per hour, how fast do they have to drive the
1 answer:
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Answer:
Multiply the second equation by 2
Step-by-step explanation:
Given
Required
Get matching coefficient for elimination
The coefficient of x in both expressions are factors.
So, we can multiply the second equation by 2 to get the coefficient of x in the first.
i.e.
So, the system becomes:
<em>Now, x can be eliminated</em>