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Solve the system by substitution 5x+3y=8 3x+y=8
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4 votes
Solve the system by substitution 5x+3y=8 3x+y=8

User Prashant Patel
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1 Answer

5 votes
3x+y=8
y=8-3x

5x+3(8-3x)=8
5x+24-9x=8
-4x+24=8
-4x=-16
x=4

5x+3y=8
5(4)+3y=8
20+3y=8
3y=-12
Y=-4

5x+3y=8
5(4)+3(-4)=8
20+-12=8
8=8
User Maninalift
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