a. 3(x-5) + 2 (3-2x) b. 6z - (5z+8) c. (3x-2y) - ( 3x-4y) d. 10x - 6 - ( 5x+4) wykonaj obliczenia. pliss szybko ;)
a)
3(x-5) + 2(3-2x)
3x -15 + 6 - 4x
-x - 9
b)
6z -(5z+8)
6z -5z - 8
z - 8
c)
(3x-2y) - (3x-4y)
3x - 2y - 3x +4y
2y
d)
10x - 6 -(5x+4)
10x - 6 - 5x -4
5x - 10
3(x-5) + 2(3-2x) = 3x-15+6-4x = -x-9
6z-(5z+8) = 6z-5z-8 = z-8
(3x-2y)-(3x-4y) = 3x-2y-3x+4y = 2y
10x-6-(5x+4) = 10x-6-5x-4 = 5x-10
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a)
3(x-5) + 2(3-2x)
3x -15 + 6 - 4x
-x - 9
b)
6z -(5z+8)
6z -5z - 8
z - 8
c)
(3x-2y) - (3x-4y)
3x - 2y - 3x +4y
2y
d)
10x - 6 -(5x+4)
10x - 6 - 5x -4
5x - 10
a)
3(x-5) + 2(3-2x) = 3x-15+6-4x = -x-9
b)
6z-(5z+8) = 6z-5z-8 = z-8
c)
(3x-2y)-(3x-4y) = 3x-2y-3x+4y = 2y
d)
10x-6-(5x+4) = 10x-6-5x-4 = 5x-10