I really want to learn, looking forward to do so. Please help me!
Thank you for the opportunity to help you with your question!
In order to do these problems, you want to write them in standard form.
Standard form always looks like y= kx+b (where k is some number and b is some constant).
1. x+y=7 **Notice the y is in the correct place, and the 7 is in the correct place. Only the x is incorrect.
So, we must subtract x to both sides
7x+8y=67 **Notice the 67 is on the right side, but the 7x is not. Also, the coefficient to y is not 1**
First subtract 7x to both sides.
Divide by negative 8 to both sides to make the coefficient 1 in front of the y
9x+21=4y **the only issue with this problem is the coefficient of 4 in front of the y**
Divide by four
For problem 2, I meant to say divide by 8 **NOT** by negative 8.
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