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NemiM [27]
3 years ago
14

How many solution does this linear system have 2x-y=7 y=2x+3

Mathematics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

NO SOLUTION

Step-by-step explanation:

We can make this problem easier to understand if we write the system vertically:

2x-y=7

y=2x+3

and then rewrite the first problem in the form y = mx + b:

2x-y=7   ↔    y + 7 = 2x   ↔  y = 2x + 7

y=2x+3

Note how these two equations have the same slope, but different y-intercepts.  This tells us that the two lines are parallel, which in turn tells us that they never intercept one another.

Thus, this system has NO SOLUTION.

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Step-by-step explanation:

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2 years ago
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3 years ago
How do you substitute 7x+2y=-19 and -x+2y=21
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Steps:
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