Rozwiąż rownanie. a)3m+4=2m+7
b)7y+3=5y+5
c)5x+1=2x+10
d)10z+5=5z+20
e)9x+1=6x+7
f)15k+6=11k+10
g)7w=2w+5
i)9z+4=40
j)5m+1=16
k)12x+4=7x+14
wzór:
a)4z+3=2+39/-2
3z+3=39/-3
3z=36/:3
z=12
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a)3m+4=2m+7
3m-2m=7-4
m=3
b)7y+3=5y+5
7y-5y=5-3
2y=2/:2
y=1
c)5x+1=2x+10
5x-2x=10-1
3x=9/:3
x=3
d)10z+5=5z+20
10z-5z=20-5
5z=15/:5
z=3
e)9x+1=6x+7
9x-6x=7-1
3x=6/:3
x=2
f)15k+6=11k+10
15k-11k=10-6
4k=4/:4
k=1
g)7w=2w+5
7w-2w=5
5w=5/:5
w=1
i)9z+4=40
9z=40-4
9z=36/:9
z=4
j)5m+1=16
5m=15/:5
m=3
k)12x+4=7x+14
12x-7x=14-4
5x=10/:5
x=2
a)
3m+4=2m+7
3m-2m= 7 -4
m=3
b)
7y+3=5y+5
7y-5y=5-3
2y=2 /:2
y=1
c)
5x+1=2x+10
5x-2x=10-1
3x=9 / :3
x=3
d)
10z+5=5z+20
10z-5z=20-5
5z=15 /:5
x=3
e)
9x+1=6x+7
9x-6x=7-1
3x=6 /:3
x=2
f)
15k+6=11k+10
15k-11k=10-6
4k=4 /:4
k=1
g)
7w=2w+5
7w-2w=5
5w = 5 /:5
w=1
i)
9z+4=40
9z=40-4
9z=36 / :9
z=4
j)
5m+1=16
5m=16-1
5m= 15 /:5
m=3
k)
12x+4=7x+14
12x-7x = 14 - 4
5x = 10 /:5
x=2