a). 2x - 3y + 4x - 12y - 5x =
b). 0,2x + (6-0,4 + 3x) - (2y + 1) =
c). -5,1/4a + 2,5b + (-1,5a + 6 1/4b)=
d). 4(x-2y) - (3x+y) + 6y =
e). 2/5(-xy - 5y + 10x) - 4(-y + x) - 2 (3xy + y) 1/2
f). 3-2a
_________
5a dla a =5
g). 6b - 4a + 3a - 7b - 2a =
h). 0,4x - (6 - 0,4y + 6x) + (2y - 1)
i). (3 1/2a + 2,5b) - (-1,2a + b 1/2) =
j). 2/5(-x - 5xy + 10y) - 4 ( 2y - x) - 2 *(-3xy + y) 1/2=
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a). 2x - 3y + 4x - 12y - 5x = x + 15y
b). 0,2x + (6-0,4 + 3x) - (2y + 1) = 2x + y
c). -5,1/4a + 2,5b + (-1,5a + 6 1/4b)= 14x - 7y
d). 4(x-2y) - (3x+y) + 6y =7y - 4x
e). 2/5(-xy - 5y + 10x) - 4(-y + x) - 2 (3xy + y) 1/2 = 5x + 2y
f). 3-2a = 3-a+a
g). 6b - 4a + 3a - 7b - 2a = b - 24
h). 0,4x - (6 - 0,4y + 6x) + (2y - 1)= 5x - 8y
i). (3 1/2a + 2,5b) - (-1,2a + b 1/2) = 1/2 b - 2,5 b
j). 2/5(-x - 5xy + 10y) - 4 ( 2y - x) - 2 *(-3xy + y) 1/2= 6y + 7x
a). 2x - 3y + 4x - 12y - 5x = x - 15y
b). 0,2x + (6-0,4 + 3x) - (2y + 1) = 0,2x +5,6 +3x -2y-1 = 3,2x -2y +4,6
c). -5,1/4a + 2,5b + (-1,5a + 6 1/4b)= -6,3/4a +8,3/4
d). 4(x-2y) - (3x+y) + 6y = 4x -8y -3x -y + 6y = x-3y
e). 2/5(-xy - 5y + 10x) - 4(-y + x) - 2 (3xy + y) 1/2 = -2/5xy -2y +4x +4y -4x -6xy -2y = -6,2/5xy + 2y
f). 3-2a
_________
5a dla a =5
g). 6b - 4a + 3a - 7b - 2a = -3a -b
h). 0,4x - (6 - 0,4y + 6x) + (2y - 1)=0,4x -6 +0,4y -6x +2y -1 = -5,6x +2,4y -7
i). (3 1/2a + 2,5b) - (-1,2a + b 1/2) = 3 1/2a + 2,5b + 1,2a - b 1/2 = 4,7a+2b
j). 2/5(-x - 5xy + 10y) - 4 ( 2y - x) - 2 *(-3xy + y) 1/2= -2/5x - 2xy + 4y (- 8y +4x +6xy-2y) 1/2 = -2/5x - 2xy + 4y - 4y +2x +3xy-1y= xy +1,3/5x-1y