Oblicz rownanie. a) (1/2a + 2) * (-3) = 2a b)4(x-3)-(x+1) = -2 c) 5 * (x-1)+3 * (x+2)=1-6x
a)(½a+2)·(-3)=2a
-1,5a-6=2a
-1,5a-2a=6
-3,5a=6
a=6· (-²/₇) = - 12/7= -1⁵/₇
b)4(x-3)-(x+1)=-2
4x-12-x-1=-2
3x=-2+12+1
3x=11/:3
x=11/3= 3 ⅔
c)5(x-1)+3(x+2)=1-6x
5x-5+3x+6=1-6x
5x+3x+6x=1+5-6
14x=0
x=0
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a)(½a+2)·(-3)=2a
-1,5a-6=2a
-1,5a-2a=6
-3,5a=6
a=6· (-²/₇) = - 12/7= -1⁵/₇
b)4(x-3)-(x+1)=-2
4x-12-x-1=-2
3x=-2+12+1
3x=11/:3
x=11/3= 3 ⅔
c)5(x-1)+3(x+2)=1-6x
5x-5+3x+6=1-6x
5x+3x+6x=1+5-6
14x=0
x=0