Równania ; tylko sprawdzenia!!!!!!!!!!! 2x+(2x-8)=2x=14, 46+10x=46 ,18+94x-24)=18 ,,prosze o rozwiazanie .,
2x+(2x-8)=2x=14,
2x + 2x - 8 = 2x + 14
4x - 8 = 2x + 14
4x - 2x = 14 + 8
2x = 22
x = 11
46+10x=46 ,
10x = 46 - 46
10x = 0
x = 0 : 10
x = 0
18+(4x-24)=18
18 + 4x - 24 = 18
4x - 6 = 18
4x = 18 + 6
4x = 24
x = 6
a)2x+(2x-8)=2x+142x + 2x - 8 = 2x + 142x + 2x - 2x = 14 + 82x = 22 /:2x = 11Sprawdzenie:L = 2*11 + (2*11 - 8) = 36P = 2*11 + 14 = 36b)46+10x=46 10x = 46 - 4610x = 0 /:10x = 0Sprawdzenie:L = 46 + 10*0 = 46 P = 46c)18+(4x-24)=1818 + 4x - 24 = 184x = 18 - 18 + 244x = 24 /:4x = 6Sprawdzenie:L = 18 + (4*6 - 24) = 18P = 18
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2x+(2x-8)=2x=14,
2x + 2x - 8 = 2x + 14
4x - 8 = 2x + 14
4x - 2x = 14 + 8
2x = 22
x = 11
46+10x=46 ,
10x = 46 - 46
10x = 0
x = 0 : 10
x = 0
18+(4x-24)=18
18 + 4x - 24 = 18
4x - 6 = 18
4x = 18 + 6
4x = 24
x = 6
a)
2x+(2x-8)=2x+14
2x + 2x - 8 = 2x + 14
2x + 2x - 2x = 14 + 8
2x = 22 /:2
x = 11
Sprawdzenie:
L = 2*11 + (2*11 - 8) = 36
P = 2*11 + 14 = 36
b)
46+10x=46
10x = 46 - 46
10x = 0 /:10
x = 0
Sprawdzenie:
L = 46 + 10*0 = 46
P = 46
c)
18+(4x-24)=18
18 + 4x - 24 = 18
4x = 18 - 18 + 24
4x = 24 /:4
x = 6
Sprawdzenie:
L = 18 + (4*6 - 24) = 18
P = 18