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Mariulka [41]
4 years ago
11

How many solutions does the system have?

Mathematics
1 answer:
Maksim231197 [3]4 years ago
3 0

Answer:

B. No solution

Step-by-step explanation:

y = 3x+9

y = 3x-7

Set the two equations equal since they are both equal to y

3x+9 = 3x-7

Subtract 3x from each side

3x+9-3x = 3x-7-3x

9 = -7

This is never true, so there are no solutions

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<h2>Answer:</h2>

Like you said, we need to use <u><em>substitution</em></u> to solve for y.

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