SOLUTION: please help me with these math problems 6z / 5x = 30 10x+20y=40 4x+7y=28

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Question 772605: please help me with these math problems
6z / 5x = 30
10x+20y=40
4x+7y=28

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
please help me with these math problems
6z / 5x = 30
10x+20y=40
4x+7y=28
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1 step at a time.
Step 1, what do you want to do?