7x=21
-2X=9
X+7=12
2X+2=5
3X-6-2X=10
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7x=21/7
x=3
-2x=9/-2
x=-4,5
2x+2=5
2x=5-7
2x=-2/2
x=-1
3x-6-2x=10
3x-2x=10+6
x=16
7x=21 / :7
x= 3
-2X=9 / :(-2)
x-= - 9/2 = = 4 i 1/2
x= 12-7
x=5
2x= 5-2
2x=3 /:2
x= 3/2 = 1 i 1/2
x= 10+6
X= 16
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7x=21/7
x=3
-2x=9/-2
x=-4,5
2x+2=5
2x=5-7
2x=-2/2
x=-1
3x-6-2x=10
3x-2x=10+6
x=16
7x=21 / :7
x= 3
-2X=9 / :(-2)
x-= - 9/2 = = 4 i 1/2
X+7=12
x= 12-7
x=5
2X+2=5
2x= 5-2
2x=3 /:2
x= 3/2 = 1 i 1/2
3X-6-2X=10
x= 10+6
X= 16