a)7x-5=4
b)2a-0,2=11
c)3/5(trzy piąte) +6x=7,6
d)3m-4=18
e)0,1*x+7=11
f)1/3y (jedna trzecia) +4=9
a)
7x-5=4
7x=5+4
7x=9
x=9/7
b)
2a-0,2=11
2a=11,2
a=11,2/2=5,6
c)
3/5 + 6x =7,6
6x=7,6-0,6
6x=7
x=7/6
d)
3m-4=18
3m=22
m=22/3
e)
0,1*x=11-7
0,1*x=4
x=4/0,1
x=40
f)
1/3*y = 9-4
1/3*y = 5
y=15
a) 7x- 5 = 4
7x = 4 + 5
7x = 9/:7
x = 9/7
x = 1 i 2/7
b) 2a - 0,2 = 11
2a = 11 + 0,2
2a = 11,2 /:2
a = 5,6
c) 3/5 + 6x = 7,6
6x = 7,6 -3/5
6x = 7,6 - 0,6
6x = 7 /:6
x = 7/6
x = 1 i 1/6
d) 3m - 4 = 18
3m = 18 + 4
3m = 22/:3
m = 7 i 1/3
e) 0,1 *x +7 = 11
0,1x = 11-7
0,1x = 4 /:0,1
x = 40
f) 1/3y +4 = 9
1/3 y = 9 - 4
1/3 y = 5 /:1/3
y = 5 :1/3
y = 5 * 3/1
y = 15
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a)
7x-5=4
7x=5+4
7x=9
x=9/7
b)
2a-0,2=11
2a=11,2
a=11,2/2=5,6
c)
3/5 + 6x =7,6
6x=7,6-0,6
6x=7
x=7/6
d)
3m-4=18
3m=22
m=22/3
e)
0,1*x=11-7
0,1*x=4
x=4/0,1
x=40
f)
1/3*y = 9-4
1/3*y = 5
y=15
a) 7x- 5 = 4
7x = 4 + 5
7x = 9/:7
x = 9/7
x = 1 i 2/7
b) 2a - 0,2 = 11
2a = 11 + 0,2
2a = 11,2 /:2
a = 5,6
c) 3/5 + 6x = 7,6
6x = 7,6 -3/5
6x = 7,6 - 0,6
6x = 7 /:6
x = 7/6
x = 1 i 1/6
d) 3m - 4 = 18
3m = 18 + 4
3m = 22/:3
m = 7 i 1/3
e) 0,1 *x +7 = 11
0,1x = 11-7
0,1x = 4 /:0,1
x = 40
f) 1/3y +4 = 9
1/3 y = 9 - 4
1/3 y = 5 /:1/3
y = 5 :1/3
y = 5 * 3/1
y = 15