Question

verificati care dintre elementele multimii A={-5,-2,-1,0,4,10} este solutie a ecuatiei ..................... a) -x-4=1 ... b) 2x-6= -6

Answer 1

a) x-4=1
x=1+4
x=5
b)2x-6=-6
2x=-6+6
2x=0
x=0