Southerngirl265
find the solution of the system. Use substitution.
2x – y = –7
4x – y = –4
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Roynsky
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Same as the last one. Find the two terms in each equation you can add together canceling out the term. For example if you add both equations tell me what you would end up with?
Southerngirl265
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what do you mean?
Roynsky
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Okay hand on I'll try to draw it out for you so you understand what I'm doing:
Roynsky
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|dw:1359180003805:dw|
Roynsky
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Now solve for "x". Then sub in "x" value into an equation to find the "y" value
shaik0124
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x=3/2
shaik0124
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|dw:1359180519486:dw|
shaik0124
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y=10
shaik0124
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hope u understand
Southerngirl265
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so x is 1.5
Southerngirl265
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in decimal form
Roynsky
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Pretty much.
shaik0124
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ya x=1-5@south