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a) 2m-6m+7m-8m-m = -6m
b) 2y-7y-y = -10y
c)5ab-ab+4ab-9ab+3ab = 2ab
d)10abc-abc-4abc+8abc-3abc = 10abc
e)a-5+3a+4 = 4a-1
f)6x+8-5x-8= x
g)4a-6b+3a-b+a+9b = 8a + 2b
h)2x-3xvz+4xy-2xyz+3x-5xy-xy+5xyz-5x = -2xy -3xvz +3xyz
Wykonaj mnożenia:
a)9(m+n) = 9m+9n
b)8(m+7)= 8m +56
c)12(1-b) = 12-12b
d)7(a+16)= 7a +112
e) niestety nie umiem