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x=34-35
x= -1
d) 3x=2x + jedna siódma
3x-2x=1/7
x= 1/7
e) 3-x= (-2x)
3-x=-2x
x= -3
f) 5y=13 /:5
y= 13/5
y= 2 3/5
g) jedna siódma x = (-2)
1/7x=-2 /*7
x=-14
x=-35+34
x=-1
d)3x=2x+1/7
1/7=1x
x=1/1,7
x=7
e)3-x=-2x
-2x+x=3
-x=3
x=3/-1
x=-3
f)5y=13/5
y=2,6
g)1/7*x=-2
x=-2 :1/7
x=14
Dasz naj?pls
x=-35+34
x=-1
d) 3x=2x + jedna siódma
3x=2x+1/7x |*7
21x=14x+x |-14x
21x-14x=x |-x
21x-14x-x=0
6x=0 |/6
x=0
e) 3-x= (-2x) |+2x
3-x+2x=0 |-3
-x+2x=-3
x=-3
f) 5y=13 |/5
y=13/5
y=2 całe i 3/5
g) jedna siódma x = (-2) |*7
x=-14