bw74565
bw74565
20-08-2020
Mathematics
contestada
If x+3y=7 and x-3y=1 what's y
Respuesta :
LammettHash
LammettHash
20-08-2020
Subtract one equation from the other to eliminate
x
:
(
x
+ 3
y
) - (
x
- 3
y
) = 7 - 1
6
y
= 6
y
= 1
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