Question

решите уравнение: (0,5-7х):5=8,5 и 5/6x-5(4-5/6x)=11

Answer 1

(0.5-7х):5=8.5
0,5-7х=8.5*5
-7х=42
х=-6

5\6х-5(4-5\6х)=11
5\6х-20+25\6х=11
5х=31
х=6.2