Oblicz,skróć i podkreśl wyrazy podobne .
Działania algebraiczne .
1. (2x - y + 4) - (z + 14 y ) + 1/2 =
2. ( -2 x + 4/5 y - 2z ) + ( 2z - 0,2 y + 2 x ) =
3. 4 z - 2e - ( 12 a + 3 z - 1,5 e ) =
4. 12 y - ( 3 x - 8 y ) + ( 2 x - 4 y ) + x =
5. 2 ( a - 2b ) = 7 (3 a-b) =
6. 5 ( x - y ) + 2 ( 4 x i 2y ) - 3 ( 2 x + y ) =
7. 5 ( x + 2 y - 3 z ) - 2 ( 4 x - 3 y + z ) =
8. -( k - m - n ) + 2 ( k + 2 m + 3 n ) - kmn =
9. 2 p ( 3 p - 2 r ) + 3 r ( p - 2r ) =
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1.
=2x-y+4-z-14y+1/2=2x-15y+4-z
2.
=-2x+4/5y-2z+2z-0,2y+2x=6/10y
3.
4z-2e-12a-3z+1,5e=1z-0,5e-12a
4.
12y-3x+8y+2x-4y+x=16y-1x
5.
2a-4b+21a-7b=19a-11b
6.
5x-5y+8x+4y-6x-2z=7x-1y-2z
7.
5x+10y-15z-8x+6y-2z=-3x+16y-17z
8.
-k+m+n+2k+4m+6n-kmn=-1k+5m+7n-kmn
9
6p do potegi 2 -4pr+3pr-6r do potegi 2 =6p do drugiej -1pr-6r do drugiej