aliceebia07 aliceebia07

16-01-2022
Mathematics

contestada

solve the simultaneous equation x + y =2 and 3x - 2y = 1

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Scabbers Scabbers

16-01-2022

Step-by-step explanation:

1. x=2-y

y=2-x

2. 3x=1+2y

x=(1+2y)/3

-2y=1-3x

y=(1-3x)/-2

y=(-1+3x)/2

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elenacxx elenacxx

16-01-2022

1) y= 2-x
2) sub in (y= 2-x) so
3x - 2 (2-x)=1
so 3x -4 + 2x= 1
5x= 5
x=1
sub x=1 into either equation
1+y=2
so y=1

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