15.2×x-4.8×x=0.68647.8×x+2.5×x=7.004(7.25-3.4)×(x-4.88)=4.57+2.36​

1. x=0,066

2. x=0,68

3. x=6,68

1. 10,4x=0,6864

x=0,6864 : 10,4

2. 10,3x=7.004

x=7.004 : 10,3

3. (7.25-3.4)×(x-4.88)=4.57+2.36

3,85(x-4,88)=6,93

3,85x-18,788=6,93

3,85x=6,93+18,788

x=25,718 : 3,85