Question

2. 100 x[24 - 6x (b-3) +2]: 3= 300
Prin metoda mersului invers va rog
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Answer 1

100×[24-6×(b-3)+2]:3=300

100×[24-6×(b-3)+2]=900

24-6×(b-3)+2=9

24-6×(b-3)=7

6b-18=-17

6b=1

b=1:6

$b = \frac{1}{6} = 0.166666.... = 0.1(6)$