Question

5х-7.2=5.6-2.4
пропорции , как решать?

Answer 1

$5x div 7.2 = 5.6 div 2.4 \ x = frac{7.2 times 5.6}{5 times 2.4} \ x = frac{72 times 56}{50 times 24} \ x = frac{3 times 28}{25} = frac{84}{25} = 3 frac{9}{25}$

Answer 2

благодарю

Answer 3

5x-7.2=3.2
5x=3.2+7.2
5x=10.4
x=2.08