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)=2(3-x)
h)3(y+6)-y=2(y+9)
i)(x-7)-2(3x+5)=3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)-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
4-2x=10
-2x= 10-4
-2x=6 |/ (-2)
x=-3
d)-(2x-1)=4
-2x+1=4
-2x=4-1
-2x=3 |/ -(2)
x=- 3/2=-1 ½
e)2(x+1)=x
2x+2=x
x=2x+2
x-2x=2
-x=2 | / (-1)
x=-2
f)2t-(3t+1)=6
2t-3t-1=6
-t=6+1
-t=7| /(-1)
g)-(4+x)=2(3-x)
-4-x=6-2x
-x+2x=6+4
x=10
h)3(y+6)-y=2(y+9)
3y+18-y=2y+18
3y-y-2y=18-18
0=0 równanie nieprawdziwe
i)(x-7)-2(3x+5)=3
x-7-6x-10=3
x-6x=3+7+10
-5x=20 | /(-5)
x=-4