rozwiąz równania: 2x+3=7 13-x=6 2x+5=26 31x-30=30 2x+1=2 12(x-1)=12 x+5=10 2x+3=15 5x+13=23 3x+11=41 -x+2=8 -x+5=-2
2x+3=7
2x=4
x=2
13-x=6
-x=-7
x=7
2x+5=26
2x=21
x=10,5
31x-30=30
31x=60
x=60/31
2x+1=2
2x=1
x=0,5
12(x-1)=12
12x-12=12
12x=24
x+5=10
x=5
2x+3=15
2x=12
x=6
5x+13=23
5x=10
3x+11=41
3x=30
x=10
-x+2=8
-x=6
x=-6
-x+5=-2
2x+3=72x=7-3x=213-x=613-6=xx=72x+5=262x=26-52x=21x=10,531x-30=3031x=30+30
31x=60x=1,94
2x+1=22x=2-12x=1x=0.512(x-1)=1212x-12=1212x=12+12x=2x+5=10x=10-5x=52x+3=152x=15-32x=12x=65x+13=235x=23-135x=10x=23x+11=413x=41-113x=30x=10-x+2=8-x=8-2x=-6-x+5=-25+2=xx=7
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2x+3=7
2x=4
x=2
13-x=6
-x=-7
x=7
2x+5=26
2x=21
x=10,5
31x-30=30
31x=60
x=60/31
2x+1=2
2x=1
x=0,5
12(x-1)=12
12x-12=12
12x=24
x=2
x+5=10
x=5
2x+3=15
2x=12
x=6
5x+13=23
5x=10
x=2
3x+11=41
3x=30
x=10
-x+2=8
-x=6
x=-6
-x+5=-2
-x=-7
x=7
2x+3=7
2x=7-3
x=2
13-x=6
13-6=x
x=7
2x+5=26
2x=26-5
2x=21
x=10,5
31x-30=30
31x=30+30
31x=60
x=1,94
2x+1=2
2x=2-1
2x=1
x=0.5
12(x-1)=12
12x-12=12
12x=12+12
x=2
x+5=10
x=10-5
x=5
2x+3=15
2x=15-3
2x=12
x=6
5x+13=23
5x=23-13
5x=10
x=2
3x+11=41
3x=41-11
3x=30
x=10
-x+2=8
-x=8-2
x=-6
-x+5=-2
5+2=x
x=7