<span>0,8x – 9 = 3x + 13
2,2x = -22
x= -10
</span><span>1,3y – 14,2 = 11,3 – 3,8y ;
</span>5.1y = 25.5
y = 5
<span>2,7x + 4,7 = 2,3x + 9,54
</span>0.4x = 4.84
x= 12.1
<span>1,3y – 2,9 = 2,3 – 0,7y ;
</span>2y = 5.2
y= 2.6
<span>0,8x – 9 = 3x + 13
-2,2х=22
х=-10
б)</span><span>1,3y – 14,2 = 11,3 – 3,8y ;
</span><span>5,1у=25,5
у=5
в)</span>2,7x + 4,7 =2,3x + 9,54 ;
0,4х=4,84
х=12,1
г) 1,3y – 2,9 = 2,3 – 0,7y ;
<span>2у=4,2
у=2,1
</span>