Rozwiąż równania.
a} -3x = 2x-10
b} 2x -2 = 7 - x
c} 10= 4-2x
d} -{2x - 1 }=4
e} 2{ x +1} = x
f} 2t- {3t + 1}=6
g} -{ 4+x } = { 3-x }
h}3{y+6} - y = 2{y+9}
i} {x-7} -2{3x+5} = 33
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a)-3x = 2x-10
-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
g)
-{ 4+x } = { 3-x }
-4-x=3-x
0=7
h)3{y+6} - y = 2{y+9}
3y+18-y=2y+18
0=0
i){x-7} -2{3x+5} = 33
x-7-6x-10=33
-5x=50
x=-10
a) -3x=2x-10
-3x-2x=-10
-5x=-10/: (-5)
x=2
b) 2x-2=7-x
2x+x=7+2
3x=9/:3
x=3
c) 10=4-2x
2x=4-10
2x=-6/:2
x=-3
d)-(2x-1)=4
-2x+1=4
-2x=4-1
-2x=3/:(-2)
x=-1,5
e)2(x+1)=x
2x+2=x
2x-x=-2
x=-2
f) 2t-(3t+1)=6
2t-3t-1=6
-t=6+1
-t=7
t=-7
g) -(4+x )= (3-x )
-4-x=3-x
-x+x=3+4
0=7
h)3(y+6)-y=2(y+9)
3y+18=2y+18
3y-2y-y=18-18
0=0
i)(x-7)-2(3x+5)=33
x-7-6x-10=33
x-6x=33+10+7
-5x=50/:(-5)
x=-10