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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