Question

Rezolvati ecuatiile in multimea numerelor naturale 9-2x=x+3;3(x+2)-1=x+7;4(2x+1)-(11-2.3)x=6

Answer 1

9-2x=x+3
-2x-x=3-9
-3x=-6
x=2

3(x+2)-1=x+7
3x+6-1=x+7
3x+5=x+7
3x-x=7-5
2x=2
x=1

4(2x+1)-(11-2.3)x=6
8x+4-5x=6
3x+4=6
3x=2
x=2/3

Answer 2

-2x-x=3-9
-x=6/×(-1)
X=-6.
3x+6-1=x+7
3x-x=7-6+1
2x=2
X=1.
(8x+4)-(11x-23x)
8x+4+11x-23x
15x+15.