prosze o rozwiązania z działaniami .! ;dd
a)2x=x-6
b)1/7x=-2
c)7u+2=u-7
d)1/2(4j+6)=3
pliss
2x-x=-6
x=-6
b)1/7x=-2 I:1/7 -2/1:1/7=-2/1*7/1=-14
x=-14
7u-u=-7-2
6u=-9 I:6
u=-1,5
2j+3=3
2j=3-3
j=0
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a)2x=x-6
2x-x=-6
x=-6
b)1/7x=-2 I:1/7 -2/1:1/7=-2/1*7/1=-14
x=-14
c)7u+2=u-7
7u-u=-7-2
6u=-9 I:6
u=-1,5
d)1/2(4j+6)=3
2j+3=3
2j=3-3
j=0