ashhez
ashhez
13-08-2017
Mathematics
contestada
2x+y=11
4x-3y=7
substitution
Respuesta :
kphung76127
kphung76127
13-08-2017
Solve for y in the first equation.
y=-2x+11
Plug it into the second equation.
4x-3(-2x+11)=7
4x+6x-33=7
10x=40
x=4
Plug the x value into one of the original equations,
2(4)+y=11
8+y=11
y=3
Final answer: (4,3)
Answer Link
tvdsalvatore
tvdsalvatore
13-08-2017
2x+y=11. 2x=11-y. X=11/2-y/2 x=11-y
2
Answer Link
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