Question

Rezolvati in multimea numerelor naturale ecuatiile : a) 8x=16; b) 8x-4=0; c) 10-x=2; d) 12x-9=4; e) 3(x+5)=15; f) 4x+5=3(x+1)+7; g) 8x+3=3(x+1)+4x.

Answer 1

a x=16:8
=2
B 8x=4
=4:8
=0,5
c x=10-2
=8
d 12x=4+9
=13
X=13:12
= 1,08(3)