Rozwiąż równania.
a)2x+5=x-7+x
b)4+5x-3=2x+4
c)2(x-3)=4+2x
d)5-(x+3)=4(x-1)-5x
e)2(3x-2)=4+4x
Błagam o szybkie i dobrze zrobione rozwiązanie. Z góry thx :*
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a) 2x + 5 = x - 7 + x
2x - x - x = -7 - 5
0 = -12
b) 4 + 5x - 3 = 2x + 4
5x - 2x = 4 - 4 + 3
3x = 3
x = 1
c) 2 (x - 3) = 4 + 2x
2x - 6 = 4 + 2x
2x - 2x = 4 + 6
0 = 10
d) 5 - (x + 3) = 4 (x - 1) - 5x
5 - x - 3 = 4x - 4 - 5x
- x - 4x + 5x = -4 - 5 + 3
0 = -6
e) 2(3x - 2) = 4 + 4x
6x - 4 = 4 + 4x
6x - 4x = 4 + 4
2x = 8
x = 4
a)
2x+5=x-7+x
2x-x-x=-7-5
0≠-12
b)
4+5x-3=2x+4
5x-2x=4-4+3
3x=3
x=1
c)
2(x-3)=4+2x
2x-6=4+2x
2x-2x=4+6
0≠10
d)
5-(x+3)=4(x-1)-5x
5-x-3=4x-4-5x
-x-4x+5x=-4-5+3
0≠-6
e)
2(3x-2)=4+4x
6x-4=4+4x
6x-4x=4+4
2x=8
x=4