1) ( х,у ) = ( 4,7 )
2) ( х,у) = ( 3,2 )
3) ( x,y ) = ( -1,3 )
4) ( х,y ) = ( 2,5 )
Объяснение:
1)
11-y-y=-3
y=7
x=11-7
x=4
(x,y ) = ( 4,7 )
2)
2(1+y)+3y+12
y+2
x=1+2
x+3
(x,y) = ( 3,2 )
3) -3x-2x=5
x=-1
y= -3 * ( -1 )
y= 3
( x , у ) = ( 1,3 )
4)
2x-(7-x) = -1
x=2
y=7-2
y=5
1) ( х,у ) = ( 4,7 )
2) ( х,у) = ( 3,2 )
3) ( x,y ) = ( -1,3 )
4) ( х,y ) = ( 2,5 )
Объяснение:
1)
11-y-y=-3
y=7
x=11-7
x=4
(x,y ) = ( 4,7 )
2)
2(1+y)+3y+12
y+2
x=1+2
x+3
(x,y) = ( 3,2 )
3) -3x-2x=5
x=-1
y= -3 * ( -1 )
y= 3
( x , у ) = ( 1,3 )
4)
2x-(7-x) = -1
x=2
y=7-2
y=5