October 2018 1 12 Report

1. Uzupełnij luki.

a) 3a + _a = 7a

b) 2b + _b = 3b

c) 4x + 13x = _x

d) 5a + _a - 2b + _b = a + b

e) 12d - _d = -2d

f) 6x + _x + 2y - 7y = 10x - _y

2. Uzupełnij zapisy, tak aby każde z wyrażeń przedstawić na dwa sposoby.

a) 5x + 7y = _x + 2y + 3x + _y

5x + 7y = _x + 4y + 7x + _y

b) 2a - _z + _a + 4z = 8a - 5z

6a - _z + _a + 8z = 8a - 5z

c) 4p + _q - 2p - 6q = _p - 3q

4p + _q - 8p - 10q = _p - 3q


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