Question

0.48 * ( X + 0.12 ) = 3.9

Answer 1

0.78х+0.0936=3.9

0.78х=3.9-0.0936

0.78х=3.8064

Х=3.8064:0.78

Х=4.88

Answer 2

0.48*(x+0.12)=3.9
0.48x + 0.0576 = 3.9
0,48x = 3,9 – 0,0576
0.48x = 3.8424
x = 8.005

Answer 3

Извеняюсь просчиталась немножко...