Question

Sa se rezolve in N:
M) 5x-6=49
N)9x-1=80
R)2(x+2)=40
S(x+3):2=5

Answer 1

5x-6=49
5x=49+6
5x=55
x=55/5
x=11

9x-1=80
9x=80+1
9x=81
x=81/9
x=9

2x+4=40
2x=40-4
2x=36
x=36/2
x=18

Answer 2

M 5x-6=49 5x=55 X=11 N 9x-1=80 9x=81 X=9 R 2(x+2)=40 2x+4=40 2x=44 X=22 S (X+3):2=5 X+3=10 X=7