Question

0,8+2×=2,9×+3,9 algebrica

Answer 1

$Ola' \\ \\ 0,8+2x=2,9x+3,5 \\ \\ \underbrace{2x-2,9x}_{-0,9x}=\underbrace{3,5-0,8}_{2,7} \\ \\ -0,9x=2,7~~--\ \textgreater \ isolando~(x)~temos: \\ \\ x= \frac{2,7}{-0,9} \\ \\ \boxed{\boxed{x=-3}} \\ \\ \mathbb{tttttttttttttttttttttttttttttttttttttttt} \\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Espero~ter~ajudado!!$