Question

2x-5,3=0,78 ; 12 - (x-1) =2,4

Answer 1

2x-5.3=0.78⇒2x=5.3+.078⇒2x=6.08⇒x=6.08/2⇒x=3.04
12-(X-1)=2.4⇒12-X+1=2.4⇒-X+13=2.4⇒-X=-13+2.4⇒-X=-10.6/(-1)=X=10.6
sucees

Answer 2

2x-5,3=0,78
2x=0,78+5,3
2x=6,08
x=6,08:2
x=3,04

12-(x-1)=2,4
x-1=12-2,4
x-1=9,6
x=9,6+1
x=10,6