Odpowiedź :
a)
[tex]2x+17=26-x\\\\2x+x=26-17\\\\3x=9 \ \ |:3\\\\\boxed{\boxed{x=3}}[/tex]
b)
[tex]\frac{3-x}{2}+\frac{2x+2}{2}=\frac{1}{2} \ \ |\cdot2\\\\3-x+2x+2=1\\\\x+5=1\\\\x=1-5\\\\\boxed{\boxed{x=-4}}[/tex]
c)
[tex]4x-6(x-3)=2(9+x)-16\\\\4x-6x+18=18+2x-16\\\\-2x+18=2x+2\\\\-2x-2x=2-18\\\\-4x=-16 \ \ |:(-4)\\\\\boxed{\boxed{x=4}}[/tex]
Odpowiedź:
a) 2x +17 = 26 -x
2x+x = 26 -17
3x= 9 / :3
x=3
b) 3-x /2 + 2x +2/2 =1/2 /*2
3-x + 2x+2 = 1
x= 1 -2 -3
x= -4
spr... 3-(-4) /2 + 2*(-4) +2 / 2 = 1/2
7/2 -8+2 /2= 1/2
3 i 1/2 -8+2 /2= 1/2
3 i 1/2 -3 = 1/2
1/2= 1/2
L=P
c) 4x - 6( x-3) = 2 ( 9+x) -16
4x -6x +18= 18 +2x -16
4x -6x -2x = -16 +18 -18
-4x = -16 /:2
x=4
spr... 4*4 -6*4 +18 = 18 + 2*4 -16
16-24 +18= 18+8-16
16-6= 26- 16
10=10
L=P
Szczegółowe wyjaśnienie: