SOLUTION: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. Please show all your work. -7x + 7y = -7 x

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. Please show all your work. -7x + 7y = -7 x       Log On

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Question 466773: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. Please show all your work.
-7x + 7y = -7
x + 9y = 61



Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x=61-9y
-7x+7y=-7
-7*(61-9y)+7y=-7
-427+63y+7y=-7
70y=420
y=6
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-7x+7*6=-7
-7x+42=-7
-7x=-49
x=7
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7+9*6=61