Question

a) x-1/2 =-1 întreg 1/4 b) 3x-2 =6 c) 3×(2x-1)= 7 întreg 3/4
repede dau coroana ​

Answer 1

a) $x-\frac{1}{2}=-1\frac{1}{4}$

$x-\frac{1}{2}=-\frac{5}{4}$

$x-\frac{1}{2}+\frac{1}{2}=-\frac{5}{4}+\frac{1}{2}$

$x=-\frac{3}{4}$

b) $3x-2=6$

$3x-2+2=6+2$

$3x=8$

$\frac{3x}{3}=\frac{8}{3}$

$x=\frac{8}{3}$

c) $3\cdot \left(2x-1\right)=7\frac{3}{4}$

$3\cdot \left(2x-1\right)=\frac{31}{4}$

$\frac{3\left(2x-1\right)}{3}=\frac{\frac{31}{4}}{3}$

$2x-1=\frac{31}{12}$

$2x-1+1=\frac{31}{12}+1$

$2x=\frac{43}{12}$

$\frac{2x}{2}=\frac{\frac{43}{12}}{2}$

$x=\frac{43}{24}$

$x=1\frac{19}{24}$

Sper că te-am ajutat!

Succes!