Rozwiąż równania:a). -(4+x)=2(3-x)b).3(y+6)-y=2(y+9)c).(x-7)-2(3x+5)=3
a)
-4-x=6-2x
-x+2x=6+4
x=10
b)
3y+18-y=2y+18
3y-y-2y=18-18
y=0
c)
x-7-6x-10=3
x-6x=3+7+10
-5x=20|: (-5)
x= -4
powinno być dobrze ;)
a) -(4+x)=2(3-x)
2x-x=6+4
3(y+6)-y=2(y+9)
0=0
(x-7)-2(3x+5)=3
x-6x=3+10+7
-5x=20|:(-5)
x=-4
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a)
-4-x=6-2x
-x+2x=6+4
x=10
b)
3y+18-y=2y+18
3y-y-2y=18-18
y=0
c)
x-7-6x-10=3
x-6x=3+7+10
-5x=20|: (-5)
x= -4
powinno być dobrze ;)
a) -(4+x)=2(3-x)
-4-x=6-2x
2x-x=6+4
x=10
b)
3(y+6)-y=2(y+9)
3y+18-y=2y+18
3y-y-2y=18-18
0=0
c)
(x-7)-2(3x+5)=3
x-7-6x-10=3
x-6x=3+10+7
-5x=20|:(-5)
x=-4