Question

Urgent!Verificati care dintre elementele multimii A={-5,-2,-1,0,4,10}este solutie a ecuatiei: a)-x-4=1;b)2x-6= -6;c)(-200):x=-20;d)x*(-15)=30;e)1-3x=x+1:f)10+2x=0.

Answer 1

C) (-200):x=-20
X=(-200):-20
X,=10
Verificare = (-200):10=-20
Solutie = {10} D) X×(-15)=30 X=(-15):30 X= -2 ________ Verificare = -2×(-15)=30 Soluție ={-2}