2x+1=7-x 18-7y=2y-57 0,8z+6=z+24 a-4=2/3a-8 6i 4/5=1/7b-1/5 / kreska ułamkowa plz pomóżcie!
2x+1=7-x
2x+x=7-1
3x=6
x=2
18-7y=2y-57
-7y-2y=-57-18
-9y=-75
y=8i1/3
0,8z+6=z+24
0,8z-z=24-6
-0,2z=18
z=-90
a-4=2/3a-8
a-2/3a=-8+4
1/3a=-4 /*3
a=-12
6i4/5=1/7b-1/5
-1/7b=-1/5-6i4/5
-1/7b=-7 /*(-7)
b=49
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2x+1=7-x
2x+x=7-1
3x=6
x=2
18-7y=2y-57
-7y-2y=-57-18
-9y=-75
y=8i1/3
0,8z+6=z+24
0,8z-z=24-6
-0,2z=18
z=-90
a-4=2/3a-8
a-2/3a=-8+4
1/3a=-4 /*3
a=-12
6i4/5=1/7b-1/5
-1/7b=-1/5-6i4/5
-1/7b=-7 /*(-7)
b=49