Rozwiąż równania
A) -3x=2x-10
B)2x-2=7-x
C)10=4-2x
D)-(2x-1)=4
a)
-3x=2x-10
-5x= -10
x= 2
b)
2x-2=7-x
3x=9
x=3
c)
10=4-2x
-2x=6
x= -3
d)
-(2x-1)=4
-2x+1=4
-2x=3
x= - 1,5
e)
2(x+1)=x
2x+2=x
x= -2
f)
2t-(3t+1)=6
2t-3t-1=6
-t=7
t= -7
A)
x+2x=x+9
2x=9
x=4,5
B)
y+(2y-5)=11-y
y+2y-5=11-y
4y=16
y=4
C)
10-2b+(6-b)=10-b+(4-b)
10-2b+6-b=10-b+4-b
-b= -2
b=2
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a)
-3x=2x-10
-5x= -10
x= 2
b)
2x-2=7-x
3x=9
x=3
c)
10=4-2x
-2x=6
x= -3
d)
-(2x-1)=4
-2x+1=4
-2x=3
x= - 1,5
e)
2(x+1)=x
2x+2=x
x= -2
f)
2t-(3t+1)=6
2t-3t-1=6
-t=7
t= -7
A)
x+2x=x+9
2x=9
x=4,5
B)
y+(2y-5)=11-y
y+2y-5=11-y
4y=16
y=4
C)
10-2b+(6-b)=10-b+(4-b)
10-2b+6-b=10-b+4-b
-b= -2
b=2