Question 301746
Hello, 
Let's go through each step.
6x+y=44
6x+7y=28 
First equation rewritten as:
y=44-6x Plug this into the second equation to get:
6x+7(44-6x)=28
6x+308-42x=28
-36x+308=28 
From this point we subtract 308 from both sides to get:
-36x=-280 Divide -36 into both sides to get:
x=280/36  reduced to 70/9
x=70/9
Plug this into either equation:
6(70/9)+7y=28 Do the math:
7y=28-(140/3)
y=-8/3
Check the answer by plugging these answers into either original equation.
Make sense?
RJ 
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