trinip2010
trinip2010
02-10-2016
Mathematics
contestada
how to solve equations
3y-2x=11
y+2x=9
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princegn
princegn
02-10-2016
3y-2x=11
y+2x=9
just plus them
4y = 20
y = 5
put y = 5 in y+2x=9
5 + 2x = 9
2x = 9 - 5
2x = 4
x = 2
thus x = 2
y = 5
Answer Link
Wexler
Wexler
02-10-2016
1. y=9 and x=8
2. y=-29 and x=20
Answer Link
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