Oblicz
A.) 2(z-3)+3(4-x)=5
B.) 2(x+4)-5(x+3)=2
C.)3(x-4)-2(2x-5)=-4
D.)-2(x+3)+4(2x+3)=-6
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A. 2(x-3)+3(4-x)=5
2x-6+12-3x=5
2-3x=5+6-12
-x=-1 /:(-1)
x=1
B.) 2(x+4)-5(x+3)=2
2x+8-5x-15=2
2x-5x=2-8+15
-3x=9 /:(-3)
x=-3
C). 3(x-4)-2(2x-5)=-4
3x-12-4x+10=-4
3x-4x=-4+12-10
-x=-2 /:(-1)
x=2
D.)-2(x+3)+4(2x+3)=-6
-2x-6+8x+12=-6
-2x+8x=-6+6-12
6x=-12 /:6
x=-2
A.) 2(x-3)+3(4-x)=5
2x-6+12-3x = 5
-x = -1 /:(-1)
x = 1
B.) 2(x+4)-5(x+3)=2
2x+8-5x-15=2
-3x = 9 /:(-3)
x = -3
C.) 3(x-4)-2(2x-5)=-4
3x-12-4x+10=-4
-x = -2 /:(-1)
x = 2
D.) -2(x+3)+4(2x+3)=-6
-2x-6+8x+12 = -6
6x = -12 /:6
x = -2