Proszę o rozwiązanie tych równań.
25-7x=3x+57
-6y+27-7y=12-6y-5
23y+9-6y-42-y=7y-8+4y-5
2x(2x-5)=4(x^+1)=1
4x+16-5x-3=17-4x+3x+10
3y-7+4-6y-13+3y=5y-4+18-2y
y(y-1)-y^=2
2x(2x-5)-3(x^+2)-1=10x^-2
(x-3)*x+4(x-5)x^-2x+4
4x-2(x+3)-2x(x+5)=3(x-1)-2x^+1
x+2-3x(x+1)= - (x pierwiastek z trzech) ^
3/8 x - 1/4 =3
5-7/8x-3/4=-1
5/8x+2=3/4
x+5-1/2x=2
^- do potęgi drugiej.
Daje naj :)) Błagam pomóżcie.
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a) 25 - 7x = 3x + 57
-7x - 3x = 57 - 25
-10x = 32 | : (-10) (dzielimy obustronnie przez 10, aby otrzymać sam x)
x = 3,2
b) -6y + 27 - 7y = 12 - 3y - 5
-6y -7y + 3y = 12 - 5 - 27
-10x = -20 | : (-10)
x = 2
c) 35x - 18 + 43 = 2x + 15 + 23x
35x - 2x - 23 x = 15 + 18 - 43
10 x = -10 |: 10
x = -1
d) 23y + 9 - 6y - 42 - y = 7y - 8 + 4y - 5
23y - 6y - 7y - 4y = -8 -5 + 42 - 9
6x = 20 |: 6
20
x = __ = 3 i jedna trzecia (zapisz w ułamku)
6
e) 4x + 18 - 5x - 3 = 17 - 8x + 3x + 10
4x - 5x + 8x - 3x = 17 + 10 - 18 + 3
4x = 12 |: 4
x = 3
f) 3y - 7 + 4 - 6y - 13 + 3y = 5y - 4 + 18 - 2y
3y - 6y + 3y - 5y + 2y = -4 + 18 + 7 - 4 + 13
-3x = 30 |: (-3)
x = -10