1,6*(0,8х+,2)=4,48 (0,5х-1,8)*1,2=26,4 28-(23,4-х)/3,6=0,3

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вопрос

Let's solve each equation step by step:

1) 1.6(0.8x + 2) = 4.48
1.6 0.8x + 1.6 2 = 4.48
1.28x + 3.2 = 4.48
1.28x = 4.48 - 3.2
1.28x = 1.28
x = 1

2) (0.5x - 1.8) * 1.2 = 26.4
0.6x - 2.16 = 26.4
0.6x = 26.4 + 2.16
0.6x = 28.56
x = 28.56 / 0.6
x = 47.6

3) 28 - (23.4 - x) / 3.6 = 0.3
28 - 23.4/3.6 + x/3.6 = 0.3
28 - 6.5 + x/3.6 = 0.3
21.5 + x/3.6 = 0.3
x/3.6 = 0.3 - 21.5
x/3.6 = -21.2
x = -21.2 * 3.6
x = -76.32

So, the solutions to the equations are:
1) x = 1
2) x = 47.6
3) x = -76.32.