Answer:
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Step-by-step explanation:
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eq^2: 7x=84 divide 84 by 7 which is 12.
therefore x is equal to 12. Then
1) take that 12 you got in equation 2 and substitute in equation 1 which is:
7x-12y=180
7(12)-12y=180
84 -12y=180
-12y=180-84
-12y=96 ............divide both sides with -12
-y=8 (×-1) both sides
y= -8
therefore 7(12)-12(-8)=180
Answer:
m=4 or slope =4
Step-by-step explanation:
so 
which is the same as 8/2. So all in all the slope is 4.
The first one should be the third option and the second one should be the first one.
