Rozwiąż równania:
a)2x-6=20
b)3y+2=-70
c)9y-7=11-7y
2x=20+6
2x=26 /:2
x=13
3y=-70-2
3y=-72 /:3
y=-24
9y+7y=11+7
16y=18 /:16
y=1,125
2x=26/:2
3y=-72/:3
16y=18/:16
y=1 ⅛ (1/8)
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a)2x-6=20
2x=20+6
2x=26 /:2
x=13
b)3y+2=-70
3y=-70-2
3y=-72 /:3
y=-24
c)9y-7=11-7y
9y+7y=11+7
16y=18 /:16
y=1,125
a)2x-6=20
2x=20+6
2x=26/:2
x=13
b)3y+2=-70
3y=-70-2
3y=-72/:3
y=-24
c)9y-7=11-7y
9y+7y=11+7
16y=18/:16
y=1 ⅛ (1/8)