(5х-8,2)*1,8=3,6 (4х-2,8)*2,5=0,75

Question

(5х-8,2)*1,8=3,6 (4х-2,8)*2,5=0,75

Answer 1

9x-14.76=3.6

9x=3.6+14.76

9x=18.36

x=2.04

 

10x-7=0.75

10x=7.75

x=0.775

 

Answer 2

9x-14,76=3,6

9x=3,6+14,76

9x=18,36

x=18,36/9

x=2,04

 

10x-7=0,75

10x=0,75+7

10x=7,75

x=7,75/10

x=0,755