Question

verificati care dintre elementele multimii A {-5,-2,-1,0,4,10}
a) -x-4=1
2x-6=-6
(-200):x=-20
x•(-15)=30
1-3x=x+1
10+2x=0

Answer 1

(-200):x=-20 x=-200:(-20)
x=10

x•(-15)=30
x=30:(-15)
x=-2



1-3x=x+1
4x=0
x=0:4
x=0


10+2x=0
2x=0-10
2x=-10
x=-10:2
x=-5