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shelton83
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2. Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.
8x – 5y = 3
7x + y = 51
 2 years ago
 2 years ago
shelton83 Group Title
2. Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 8x – 5y = 3 7x + y = 51
 2 years ago
 2 years ago

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Lets take the second equation and make y the subject. \[y=517x\] Now place this value in the first equation. \[8x5(517x)=3\]Now solve this equation. \[8x255+35x=3\]\[43x=258\]\[x=258/43\]\[x=6\] Now place this equation in any of the above equations. Lets put it in the first equation.\[8(6)5y=3\]\[485y=3\]\[483=5y\]\[45=5y\]\[45/5=y\]\[y=9\]
 2 years ago
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