3-х=1+х 1-5(2-3х)=6 5-2(3-х)=11
3-x=1+x
3-1=x2
2=x2
1-5(2-3x)=6
1-10-15x=6
1-10-6=15x
-15=15x
x=30
5-2(3-x)=11
5-6-2x=11
-12=2x
x=6
3-х=1+х 2x=2 x=1; 1-5(2-3х)=6 1-10+15x-6=0 15x=15 x=1; 5-2(3-х)=11 5-6+2x=11 2x=11-1 2x=10 x=5