Odpowiedź:
a)
12(x + 3) - 5(4 - 3x)= 12x + 36 - 20 + 15x = 27x + 146
b)
3(a - 3b) - 4(2b - 4x) = 3a - 9b - 8b + 16x = 3a - 17b + 16x
c)
2 - 10(2y - x) + 2(- y + 4x) = 2 - 20y + 10x - 2y + 8x = 18x - 22y + 2
d)
3(- 2 + y) - (x - 2y) - 2(x + y) = - 6 + 3y - x + 2y - 2x - 2y = - 3x + 3y - 6
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Odpowiedź:
a)
12(x + 3) - 5(4 - 3x)= 12x + 36 - 20 + 15x = 27x + 146
b)
3(a - 3b) - 4(2b - 4x) = 3a - 9b - 8b + 16x = 3a - 17b + 16x
c)
2 - 10(2y - x) + 2(- y + 4x) = 2 - 20y + 10x - 2y + 8x = 18x - 22y + 2
d)
3(- 2 + y) - (x - 2y) - 2(x + y) = - 6 + 3y - x + 2y - 2x - 2y = - 3x + 3y - 6