1.Rozwiąż równanie.
a) 2x+5=14,8+(x-3)=
b)1/4x-(4+1/2x)=-2
2.Rozwiąż równanie.
a)x+7 1/2=3,2=
b)12,5-x=48 1/4=
c)13 2/3+x=-5 1/6
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1.
a)2x+5=14,8+(x-3)
2x+5=14,8+x-3
2x-x=14,8-3-5
1x=6,8/:1
x=6,8
b) 1/4x-(4+1/2x)=-2
1/4x-4-1/2x=-2
1/4-2/4x=-2+4
-1/4x=2/*(-4)
x=-8
Zad.2
a)x+7 1/2 =3,2
x=3,2-7,5
x=-4,3
b)12,5-x=48 1/4
-1x=48 1/4 - 12,5
-1x=35 3/4/:(-1)
x=-35 3/4
c)13 2/3+x=5 1/6
x=-5 1/6 - 13 2/3
x=-5 1/6 -13 4/6
x= - 18 5/6
zad.1
a)
b)
zad.2
a)
b)
c)