Rozwiąż
a. 3x-5=-2x+4
b. 2(x+1)=4-3x
c. 2x-3=5
d. 18+x=-7
e. -19+x=20
f. -5-6x=10x+27
g. 3x-2x=4(x+5)
h. -4(2-x)+5=3+2x
i. 2x-4=6(x+7)-2
j. -3x+2=10-x
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a. 3x-5=-2x+4
3x+2x=5+4
5x=9/:5
x=9/5
b. 2(x+1)=4-3x
2x+2=4-3x
2x+3x=-2+4
5x=2/:5
x=2/5
c. 2x-3=5
2x=3+5
2x=8/:2
x=4
d. 18+x=-7
x=-18-7
x=-25
e. -19+x=20
x=19+20
x=39
f. -5-6x=10x+27
-6x-10x=5+27
-16x=32/:(-16)
x=-2
g. 3x-2x=4(x+5)
3x-2x=4x+20
x-4x=20
-3x=20/:(-3)
x=-20/3
h. -4(2-x)+5=3+2x
-8+4x+5=3+2x
4x-3=3+2x
4x-2x=3+3
2x=6/:2
x=3
i. 2x-4=6(x+7)-2
2x-4=6x+42-2
2x-6x=4+42-2
-4x=44/:(-4)
x=-11
j. -3x+2=10-x
-3x+x=-2+10
-2x=8/:(-2)
x=-4
a 3x-2x = 4-5 x= -1
b 2x + 2 = 4-3x
2x+3x= 4 -2
5x = 2 /:5
x=0.4
c 2x= 5+3
2x=8 /:2
x=4
d x=-7-18
x=-25
e x=20+19
x=39
f -6x-10x= 27+5
-16x=32 /:-16
x=2
g x= 4x+20
x-4x=20
-3x=20 /:-3
x= 6.6
h -8+4x+5=3+2x
4x-2x=3+6-5
2x= 2 /:2
x=1
i 2x+4=6x+42-2
2x-6x=42-2-4
2x=36 /:2
x= 18
j -3x+x=10-2
-2x=8/:-2
x=-4
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