Răspuns :
Răspuns:
1) 9x+2=3(2x+1)
9x+2=6x+3
9x-6x=3-2
3x=1=>x=1/3
2)8x-5=6x+2
8x-6x=2+5
2x=7=>x=7/2
Răspuns:
1)9x+2=6x+6
9x+(-6x)=6-2
-3x=4
x=4÷(-3)
x=-1,3
2)8x-(-6x)=2+5
8x+6x=2+5
14x=7
x=14÷7
x=2
Răspuns:
1) 9x+2=3(2x+1)
9x+2=6x+3
9x-6x=3-2
3x=1=>x=1/3
2)8x-5=6x+2
8x-6x=2+5
2x=7=>x=7/2
Răspuns:
1)9x+2=6x+6
9x+(-6x)=6-2
-3x=4
x=4÷(-3)
x=-1,3
2)8x-(-6x)=2+5
8x+6x=2+5
14x=7
x=14÷7
x=2