Question

0.2c+1.6c+1,1=52.5+3.5

Answer 1

0,2c+1,6c+1,1=52,5+3,5

1,8с=52,5+3,5-1,1
1,8с=54,9
с=54,9/1,8=30,51.8c=56-1.1
1.8c=54.9
c=54.91.8
c=30.5