Question

Please solve this using substitution method y-2x=1 and 3x-4y=1

Answer 1

Answer:

X=-1 Y=-1

Step-by-step explanation:

y-2x=1

y=1+2x.......eq1

3x-4y=1 put value of EQ 1

3x-4(1+2x)=1

3x-4-8x=1

-5x=5

X=-1 put value in eq 1

y=1-2

=-1

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Answer 2

Answer:

y=2x+1

put the value of y in ( 2) equation

3x-4y=1

3x-4(2x+1)=1

3x-8x-4=1

-5x=1+4

-5x=5

x=5/-5

x= -1

Put the value of x in 1 equation

y-2x=1

y-2(-1)=1

y+2=1

y=1-2

y= -1

y= -1 , x= -1