Question

решите уравнение: 3,3-(x-6,7)=100

Answer 1

3,3-х+6,7=100;
-х=100-6,7-3,3;
-х=90;
х=-90

Answer 2

3,3-(x-6,7)=100;
x-6,7=3,3-100;
x-6,7=-96,7;
x=-90.