Rozwiąż ;
a)2+(5x-7) =
b) 7x-(5y+2x)-4y=
c)(a-2b)+(4b-5a)=
d) (2a-3b)-(-7a-5b)=
a) 2+5x-7= -5+5x
b) 7x-5y-2x-4y= 5x-9y
c) a-2b+4b-5a = -4a + 2b
d) 2a-3b+7a+5b= 9a +2b
a)
2+(5x-7)=2+5x-7=5x - 5
b)
7x-(5y+2x)-4y=7x-5y-2x-4y=5x-9y
c)
(a-2b)+(4b-5a)=a-2b+4b-5a= -4a +2b
d)
(2a-3b)-(-7a-5b)=2a-3b+7a+5b=9a+2b
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a) 2+5x-7= -5+5x
b) 7x-5y-2x-4y= 5x-9y
c) a-2b+4b-5a = -4a + 2b
d) 2a-3b+7a+5b= 9a +2b
a)
2+(5x-7)=2+5x-7=5x - 5
b)
7x-(5y+2x)-4y=7x-5y-2x-4y=5x-9y
c)
(a-2b)+(4b-5a)=a-2b+4b-5a= -4a +2b
d)
(2a-3b)-(-7a-5b)=2a-3b+7a+5b=9a+2b