Solve the system using any method:
y = x - 3
y = 7x + 3

x=-1, y=-4

Step-by-step explanation:

For this question, you can replace y in one equation with the second one.

This means x-3=7x+3.

From there, you subtract x from each side, giving -3=6x+3.

Subtracting 3 from each side makes it -6=6x.

Dividing both sides by 6 leaves x isolated, with a result of x=-1.

You can substitute the value of x into either equation to work out y. I'm using the first one, as it has smaller numbers.

This equation is now y=-1-3, which can be solved for y=-4.

**This content involves simultaneous equations, which you may wish to revise. I'm always happy to help!

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