a) 4x + (-3x + 2) - 2x + 1 = 4x - 3x + 2 - 2x + 1 = -x + 3
b) 3 + (2x-1) + (4-x) = 3 + 2x - 1 + x - x = 2 + 2x
c) (2a - b) + (3a - 2b) = 2a - b + 3a - 2b = 5a - 3b
d) 4xy + (3 - 4xy)= 4xy + 3 - 4xy = 3
e) 24a + b - (4a + 2b)= 24a + b - 4a - 2b = 20a - b
f) (2ab - 3) - (2 + 2ab)= 2ab - 3 - 2 - 2ab = -5
g) -5b - 2a + (3a - 2b)= -5b - 2a + 3a - 2b = -7b + a
h) -(3 + 2ab) - 4ab= -3 - 2ab - 4ab = -3 - 6ab
i) (0,2a - 3b) - (-0,8a - 3b)= 0,2a - 3b + 0,8a + 3b = a
j) 1/4x - (0,2 - 1 1/4x) = 1/4x - 0,2 + 5/4x = 6/4x - 0,2 = 3/2x - 0,2
k) 4 2/3a - (3/4a + 1)= 14/3a - 3/4a - 1 = 56/12a - 9/12a - 1 = 47/12a - 1 = 3 11/12a - 1
l) (0,04x - 1,4) + (-0,3x + 0,4) = 0,04x - 1,4 - 0,3x + 0,4 = -0,26x -1
a) 4x + (-3x + 2) - 2x + 1=
4x-3x+2-2x+1=
-x+3
b) 3 + (2x-1) + (4-x)=
3+2x-1+4-x=
6+x
c) (2a- b) + (3a - 2b)=
2a-b+3a-2b=
5a-3b
d) 4xy + (3 - 4xy)=3
e) 24a + b - (4a + 2b)=
24a+b-4a-2b=
20a-b
f) (2ab - 3) - (2 + 2ab)=
2ab - 3-2-2ab=-5
g) -5b -2a + (3a - 2b)=
-5b- 2a + 3a - 2b=
-7b+a
h) -(3 + 2ab) - 4ab=
-3-2ab-4ab=
-3-6ab
i) (0,2a - 3b) - (-0,8a - 3b)=
0,2a - 3b+0,8a+3b=a
j) 1/4x - (0,2 - 1 1/4x)=
1/4x-0,2+ 1 1/4x=1 i 2/4x-0,2
k) 4 2/3a - (3/4a + 1)=
4 2/3a - 3/4a - 1=
3 i 11/12a-1
l) (0,04x - 1,4) + (-0,3x + 0,4)=
0,04x - 1,4 -0,3x + 0,4=
0,26x-1
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a) 4x + (-3x + 2) - 2x + 1 = 4x - 3x + 2 - 2x + 1 = -x + 3
b) 3 + (2x-1) + (4-x) = 3 + 2x - 1 + x - x = 2 + 2x
c) (2a - b) + (3a - 2b) = 2a - b + 3a - 2b = 5a - 3b
d) 4xy + (3 - 4xy)= 4xy + 3 - 4xy = 3
e) 24a + b - (4a + 2b)= 24a + b - 4a - 2b = 20a - b
f) (2ab - 3) - (2 + 2ab)= 2ab - 3 - 2 - 2ab = -5
g) -5b - 2a + (3a - 2b)= -5b - 2a + 3a - 2b = -7b + a
h) -(3 + 2ab) - 4ab= -3 - 2ab - 4ab = -3 - 6ab
i) (0,2a - 3b) - (-0,8a - 3b)= 0,2a - 3b + 0,8a + 3b = a
j) 1/4x - (0,2 - 1 1/4x) = 1/4x - 0,2 + 5/4x = 6/4x - 0,2 = 3/2x - 0,2
k) 4 2/3a - (3/4a + 1)= 14/3a - 3/4a - 1 = 56/12a - 9/12a - 1 = 47/12a - 1 = 3 11/12a - 1
l) (0,04x - 1,4) + (-0,3x + 0,4) = 0,04x - 1,4 - 0,3x + 0,4 = -0,26x -1
a) 4x + (-3x + 2) - 2x + 1=
4x-3x+2-2x+1=
-x+3
b) 3 + (2x-1) + (4-x)=
3+2x-1+4-x=
6+x
c) (2a- b) + (3a - 2b)=
2a-b+3a-2b=
5a-3b
d) 4xy + (3 - 4xy)=3
e) 24a + b - (4a + 2b)=
24a+b-4a-2b=
20a-b
f) (2ab - 3) - (2 + 2ab)=
2ab - 3-2-2ab=-5
g) -5b -2a + (3a - 2b)=
-5b- 2a + 3a - 2b=
-7b+a
h) -(3 + 2ab) - 4ab=
-3-2ab-4ab=
-3-6ab
i) (0,2a - 3b) - (-0,8a - 3b)=
0,2a - 3b+0,8a+3b=a
j) 1/4x - (0,2 - 1 1/4x)=
1/4x-0,2+ 1 1/4x=1 i 2/4x-0,2
k) 4 2/3a - (3/4a + 1)=
4 2/3a - 3/4a - 1=
3 i 11/12a-1
l) (0,04x - 1,4) + (-0,3x + 0,4)=
0,04x - 1,4 -0,3x + 0,4=
0,26x-1