Question

решите уровнение плиииз 4:(х×3)+2=1,8

Answer 1

$frac{4}{x+3} +2=1.8$
$frac{4}{x+3} + frac{2(x+3)}{x+3} =1.8$
$frac{4+2x+6}{x+3} =1.8$
$frac{2x+10}{x+3} =1.8$
2x+10=1.8(x+3)
2x+10=1.8x+5.4
2x-1.8x=5.4-10
0.2x=-4.6
$x= frac{-4.6}{0.2}$
x=-23