Rozwiąż i sprawdź równania:
a) 4(x-2)=3 g) 2x + 5x = 19
b) x-2x-2=4 3 2
c) 3(x+1)-5(x+1)=0 h) 4x - 5x = 1
d) 4(x-3)-2(3x-9)=0 9 12
e) 7(x-4)+2x=8 i) x-3 = 4
f) 3(2x-1)-16x= -8 3
j) 5x-2 - 16x+1 = 0
2 7
k) 2(x+2)-3(x-1)+8= 3x-1
l) 1 - 7 = x-36
2 3
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a)4(x-2)=3
4x-8=3/+8
4x=11/:4
x=4/11
b)y-2x-2=4/+2
y-2x=6/-y
-2x=6-y/:2
-x=3-1/2y /*(-1)
x=-3+1/2y
c)3(x+1)-5(x+1)=0
3x+3-5x+5=0
8x+8=0/-8
8x=-8/:8
x=8
d)4(x-3)-2(3x-9)=0
4x-12-6x+18=0
10x-6=0/+6
10x=6/:10
x=6/10
e)7(x-4)+2x=8
7x-4+2x=8
9x-4=8/+4
9x=12/:9
x=9/12
f)3(2x-1)-16x=-8
6x-3-16x=-8
22x-3=-8/+3
22x=-5/:22
x=5/22
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a) 4(x-2)=3
4x+8=3
4x=3-8
4x=-5 /: 4
x=4/5
b) x-2x-2=4
x-2=4
x=4+2
x=6
c) 3(x+1)-5(x+1)=0
3x+3-5x-5=0
-8x-2=0
-8x=0+2
-8x=2 /: (-8)
x= -4
d) 4(x-3)-2(3x-9)=0
4x-12-6x+18=0
-10x-30=0
-10x=0+30
-10x=30 /: (-10)
x=-3
e) 7(x-4)+2x=8
7x-28+2x=8
9x=28=8
9x=8+28
9x=36 /:9
x=4
f) 3(2x-1)-16x= -8
6x-3-16x= -8
-22x-3= -8
-22x= -8 +3
-22x= -11/ : (-22)
x=2