Question

ой с= 2/25 8(с-2,7)+2с

Answer 1

8с - 21,6+2с = 10 с - 21,6
10/1*2/25 - 21/6= 4/5-21/6= 24/30-105/30= - 81/30= - 2 21/30= - 2 7/10= - 2,7