Wither26078
Wither26078
12-12-2021
Mathematics
contestada
x+y=5
x-1=y
Please help
Respuesta :
hifzur630
hifzur630
12-12-2021
This is a simultaneous equation
Rearrange the second to give
x - y = 1
Add the two equations
(x + y) + (x - y) = 5 + 1
2x = 6
x=3
Substitute 3 into either equation
3 - 1 = y
y = 2
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