2x+5y=21
4x+3y=47
Find x and y
Answers
Answered by
0
2x+5y+4x+3y=68
6x+8y=68-:(final equation)
{ x=6,y=4 }
Answered by
2
Answer:
x=86/7 y=-5/7
Step-by-step explanation:
make 2x+5y=21 into 4x+10y=42 and subtract 4x+3y=47 & 4x+10y=42
you get 7y=-5 so y=-5/7
substitue y value in any of the equation and u will get x value as 86/7
Hence , y=-5/7 & x=86/7
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