1)7x-5=x+7;
7x-x=7+5;
6x=12;
x=12:6;
x=2.
2)10(8x-5)=110;
80x-50=110;
80x=110+50;
80x=160;
x=160:80;
x=2
3) 2-2(x-1)=4(x-2);
2-2x-2=4x-8;
-2x-4x=-8-2-2;
-6x=-12;
x=-12:(-6);
1)7x-5=x+7;
7x-x=7+5;
6x=12;
x=12:6;
x=2.
2)10(8x-5)=110;
80x-50=110;
80x=110+50;
80x=160;
x=160:80;
x=2
3) 2-2(x-1)=4(x-2);
2-2x-2=4x-8;
-2x-4x=-8-2-2;
-6x=-12;
x=-12:(-6);
x=2