Question

7x-2/3=2x+1/2



|3x+2|=11



|x-7|=2​

Answer 1

надеюсь чем нибудь помогла)

Answer 2

$1)\frac{7x-2}{3}=\frac{2x+1}{2}\\\\\frac{7x-2}{3}*6=\frac{2x+1}{2}*6\\\\2(7x-2)=3(2x+1)\\\\14x-4=6x+3\\\\14x-6x=3+4\\\\8x=7\\\\x=\frac{7}{8}\\\\x=0,875\\\\Otvet:\boxed{0,875}$

$2)|3x+2|=11\\\\\left[\begin{array}{ccc}3x+2=11\\3x+2=-11\end{array}\right\\\\\left[\begin{array}{ccc}3x=9\\3x=-13\end{array}\right\\\\\left[\begin{array}{ccc}x=3\\x=-4\frac{1}{3} \end{array}\right\\\\Otvet:\boxed{-4\frac{1}{3};3}$

$3)|x-7|=2\\\\\left[\begin{array}{ccc}x-7=2\\x-7=-2\end{array}\right\\\\\left[\begin{array}{ccc}x=9\\x=5\end{array}\right\\\\Otvet:\boxed{5;9}$