a) 7a -3 + 2a - 8a = a - 3 = 9 - 3 = 6
b) 8x + 4y - 7x + y = x + 5y =7 + (5 * 5) = 7 + 25 =32
c) 12 - 4p - 8 - p - 4- 5p = -10p = -10 * (-3) = 30
d) 7m+ 5 + 2n - 5m- n - 2m = 5 + n = 5 + 12 = 17
PS Wszystko jest zrobione poprawne + miłego wieczorku ;)
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a) 7a -3 + 2a - 8a = a - 3 = 9 - 3 = 6
b) 8x + 4y - 7x + y = x + 5y =7 + (5 * 5) = 7 + 25 =32
c) 12 - 4p - 8 - p - 4- 5p = -10p = -10 * (-3) = 30
d) 7m+ 5 + 2n - 5m- n - 2m = 5 + n = 5 + 12 = 17
PS Wszystko jest zrobione poprawne + miłego wieczorku ;)
= 9a - 8a - 3 = a - 3
a = 9
9 - 3 = 6
8x+4y-7x+y dla x=7 y=5
= x + 5y =
dla x = 7 y = 5
= 7 + 5*5 = 7 + 25 = 32
12-4p-8-p-4-5p p=-3
= -5p - 5p + 4 - 4 = -10p
dla p = -3
-10p = -10(-3) = 30
7m+5+2n-5m-n-2m dla m= -7 n=12
= 2m - 2m + n + 5 = n + 5 =
dla n = 12
= 12 + 5 = 17