Rozwiąż równania .
a)2(x+1)=x
b)2t-(3t+1)=6
c)-(4+x)=2(3-x)
d)3(y+6)-y=2(y+9)
e)(x-7)-2(3x+5)=3
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a) 2(x+1)=x
2x+2=x
2x-x=-2
x=-2
b) 2t-(3t+1)=6
2t-3t-1=6
-t=7 /:(-1)
t=-7
c) -(4+x)=2(3-x)
-4-x=6-2x
-x+2x=6+4
x=10
d) 3(y+6)-y=2(y+9)
3y+18-y=2y+18
3y-2y-y=18-18
0=0
e) (x-7)-2(3x+5)=3
x-7-6x-10=3
x-6x=3+7+10
-5x=20 /:(-5)
x=-4
a) 2(x+1)=x
2x+2=x
2x-x=-2
x=-2
b) 2t-(3t+1)=6
2t-3t-1=6
-t=7 |:-1
t=-7
c) -(4+x)=2(3-x)
-4-x=6-2x
-x+2x=6+4
x=10
d) 3(y+6)-y=2(y+9)
3y+18-y=2y+18
3y-2y-y=18-18
0=0
e) (x-7)-2(3x+5)=3
x-7-6x-10=3
x-6x=3+7+10
-5x=20 |:-5
x=-4