rozwiaz rownania
a)x/4 -x/3= x/2 -7
b)x-3/2 -2x-4/3=-2/3x+1/4 -1
rozwiaz układ rownan
a) {x+y=50
{x/2 -y/3=0
b) {x/2 -1,5 -y=-3
{x/3 - y/2=1/3
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a) =3x\12-4x\12=6x\12-84\12
-7x\12=-84\12 \*12
-7x=-84 \:-7
x=12
b) =x\1-3\2-2x\1-4\3=-2x\3+1\4-1\1
x\1-2x\1+2\3x=1\4-1\1+3\2+4\3
-x\1+2x\3=3\12-12\12+18\12+16\12
-3x\3+2x\3=25\12
-x\3=25\12
-4x\12=25\12 \*12
-4x=25\:-4
x=-25\4
x=-6i1\4
x+y=50
x\2-y\3=0
x=50-y
50-y\2 - y\3=0
3(50-y)\6 - 2y\6=0
150-3y\6 - 2y\6=0\*6
150-3y - 2y=0
150-5y=0
-5y=-150\:-5
y=30
x=50-30
x=20
x\2-1,5-y=-3
x\3-y\2=1\3
-y=-3+1i1\2-x\2
-y=-1i1\2-x\2
-y=-3\2-x\2 \*-1
y=3\2+x\2
x\3-(3\2+x\2):2=1\3
x\3-(3\2:2\1 +x\2:2\1)=1\3
x\3-(3\2*1\2 +x\2*1\2)=1\3
x\3-3\4-x\4=1\3
4x\12-9\12-3x\12=4\12
4x\12-3x\12=9\12+4\12
x\12=13\12 \*12
x=13
y=2\3+13\2
y=4\6+39\6
y=43\6
y=7i1\6