SOLUTION: -4x+7y=-5
x-4y=-1
solve each system by substitution
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Question 840308: -4x+7y=-5
x-4y=-1
solve each system by substitution
Answer by mxgirl22(39) (Show Source): You can put this solution on YOUR website!
-4x+7y=-5
x-4y=-1
solve each system by substitution
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1.) Note: I'm going to label each equation.
Equation #1)
Equation #2)
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2.) Get "x" by itself in equation #2
Equation #2)
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3.) Now that we have "x" by itself in equation #2, plug in x=-1+4y into equation #1.
Equation #1)
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4.) Next, use the "y" value we found and plug in to either equation #1 or #2 to find "x" value.
Equation #1)
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5.) Check using x=3 & y=1
Equation #2)
Checks!
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6.) Answer.
x=3
y=1
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