Rozwiąż równania:
a) 3x-5=4+2x
b) -5x+10=-2x-8
c) -5x-17=-9x+3
d) 7x+14=5x-22
e) 2x-4+5x=x+2
f) -3+2x-6=3-4x
g) 7x+2=5+3x+9
h) -5x+12+x=2x-12
i) 2(x-3)+3(4-x)=5
j) 3(x-4)-2(2x-5)=-4
k) 2(x+4)-5(x+3)=2
l) -2(x+3)+4(2x3)=-6
=]
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a) 3x-5=4+2x
3x-2x=4+5
x=9
b) -5x+10=-2x-8
-5x+2x=-8-10
-3x = -18 /:(-3)
x = 6
c) -5x-17=-9x+3
-5x+9x=3+17
4x = 20 /:4
x=5
d) 7x+14=5x-22
7x-5x=-22-14
2x = -36 /:2
x = -18
e) 2x-4+5x=x+2
2x+5x-x=2+4
6x = 6 /:6
x=1
f) -3+2x-6=3-4x
2x+4x=3+3+6
6x=12 /:6
x=2
g) 7x+2=5+3x+9
7x-3x=5+9-2
4x=12 /:4
x=3
h) -5x+12+x=2x-12
-5x+x-2x=-12-12
-6x=-24 /:(-6)
x=4
i) 2(x-3)+3(4-x)=5
2x-6+12-3x=5
2x-3x=5+6-12
-x=-1 /*(-1)
x=1
j) 3(x-4)-2(2x-5)=-4
3x-12-4x+10=-4
3x-4x=-4+12-10
-x=-2 /*(-1)
x=2
k) 2(x+4)-5(x+3)=2
2x+8-5x-15=2
2x-5x=2-8+15
-3x=9 /:(-3)
x=-3
l) -2(x+3)+4(2x+3)=-6
-2x-6+8x+12=-6
-2x+8x=-6+6-12
6x = -12 /:6
x = -2
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