Odpowiedzi

2010-01-06T16:57:25+01:00
8y-36=24 / +36
8y=60 / : 8
y=7,5


6y-13= -52 / +13
6y=-39 / :6
y=6,5


4x-4=3 / +4
4x=7 / ;4
x= 7/4
x=1 3/4
1 5 1
2010-01-06T16:58:09+01:00
A) 8y - 36 = 24 / +36
8y = 60 / :8
y = 7,5

b) 6y -13=-52 /+13
6y = -39 /:6
y = 6,5

c) 4x-4=3 / +4
4x=7 /:4
x = 1,75
1 5 1
2010-01-06T17:01:07+01:00
A)8y-36=24
8y = 24+36 = 60
y = 60:8=7.5
b) 6y-13=-52
6y=-52+13=-39
y= -39:6=6.5
c)4x-4=3
4x=3+4=7
x = 7:4=1.75

Pzdr Pietras
1 5 1