January 2019 0 11 Report
Doprowadz wyrażenia do najprostszej postaci.
a) 4x+7y-3x-12y
b) (4a-6b) + (6a + 7b)
c) - (2x-4y)+(5y-7x)
d) (4a-3b) - (3a - 7b)
e) - (-4x-7v) - (4y-12x)
f) - (x-1) - (x +2)+ (x+3)
g) - (2x-3)-(4x-1)+(5x-2)
h) - (-3a-2b) - 4 (x-y)
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