mathishard15
mathishard15
05-02-2017
Mathematics
contestada
-2x+6y=6
-7x+8y=-5
Solve for x and y
Respuesta :
Mina021
Mina021
05-02-2017
-2x+6y=6
-7x+8y=-5
2(7x+8y=-5)
-7(-2x+6y=6)
Distribute
14x+16y=-10
14x-42y=-42
eliminate
-26y=-32
divide
y=1.2
-2x+6(1.2)=6
-2x+7.4=6
subtract 7.4 on both sides
-2x=-1.4
divide
x=0.7
I believe this is right
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