Question

método de reducción
x-y=1 4x+3 y=18​

Answer 1

x=2.5

y=15.5

Explicación paso a paso:

x-y=1

4x+3y=18

3x#=3

4x#=18

7x =18

x =18/7

x =2.5

x-y=1

2.5-y=18

-y=18-2.5

-1(-y=18-2.5)

y=-18+2.5

y=-15.5