Question

0,7умножить(х-3)=0,5умножить(х+1)

Answer 1

0,7x-2,1=0,5x+0,5;
0,2x=2,6; x=13;
Ответ: x=13

Answer 2

$0.7(x-3) = 0.5(x+1)\ 0.7x - 2.1 = 0.5x+0.5\ 0.2x = 2.6\ x = 2.6/0.2 = 13$