1. Rozwiąż i sprawdź równania a)
b) x-2x-2=4
c)3(x+1)-5(x+1)=0
d)4(x-3)-2(3x-9)=0
e)7(x-4)+2x=8
f)3(2x-1)-16x= -8
g) 2x + 5x = 19
3 2
h) 4x-9 - 5x =1
9 12
i) x-3 = 4
3
j) 5x-4 - 16x+1 = 0
2 7
k) 2(x+2) -3(x-1) +8 =3x-1
l) 0,5x-7= x-36:3
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b)-x=6|:-1
x=-6
c)3x+3-5x-5=0
-2x=2|:-2
x=-1
d) 4x-12-6x-18=0
-2x=30|:-2
x=-15
e) 7x-28+2x=8
9x=36|:9
x=4
f) 6x-3-16x=-8
-10x=-5|:-10
x=0,5
g)4x+15x=114
19x=114|:19
x=6
h)16x-36-15x=36
x=72
i)x-3=12
x=15
j) 35x-28-32x+x=0
4x=28|:4
x=7
k) 2x+4-3x+3+8=3x-1
-4x=-16|:-4
x=4
l) 0,5x-7=x-12
-0,5x=5|:-0,5
x=-10
Chyba się nigdzie nie pomyliłem...?
x-2x-2=4
x-2x= 4+2
-x = 6 / -1
x= -6
3(x+1)-5(x+1)=0
3x+3 -5x-5= 0
3x - 5x= -3+5
-2x= 2/-2
x= -1
4(x-3)-2(3x-9)=0
4x - 12 - 6x +18=0
4x- 6x= -18+12
-2x= -6/-2
x= 3
7(x-4)+2x=8
7x-28+2x=8
7x+2x= 28+8
9x= 36/9
x= 4
3(2x-1)-16x= -8
6x-3- 16x= - 8
6x - 16x= - 8 +3
-10x = - 5/-10
x= 1/5
2x + 5x = 19 /*6
3 2
4x + 15x= 114
19x = 114/19
x= 6
4x-9 - 5x =1 /*108
9 12
48x-108 - 45x=1
48x-45x= 108 + 108
3x= 213/3
x= 72
x-3 = 4 /*3
3
x -3= 12
x= 9
5x-4 - 16x+1 = 0 /*14
2 7
35x- 28 - 32x +2= 0
35x - 32x= 28-2
3x= 26/3
x= 26/3
2(x+2) -3(x-1) +8 =3x-1
2x+4 -3x+3+8=3x-1
2x -3x-3x= -4-3-8-1
-4x= -16/-4
x= 4
0,5x-7= x-36:3
0.5x - 7= x -12
0.5x - x = -12 +7
-0.5x = -5/-0.5
x= 10
prosze o naj , wszystko jest dobrze