Question

|3-6y|=12
Va rog ajutatima

Answer 1

|a| = $\left \{ {{a,a \geq 0} \atop {-a,a\ \textless \ 0}} \right.$

1) 3-6y=12
   -6y=9
   y= -$\frac{9}{6}$ = -$\frac{3}{2}$

2) 3-6y= -12
   -6y=-15
   y= $\frac{15}{6}$
   y= $\frac{5}{2}$

Deci y∈{ -$\frac{3}{2}$  ; $\frac{5}{2}$  }