Odpowiedź:
a) 4x - 5y - 6x + y = -2x - 4y
B) (4x - 8 ) + (5x - 6) = 4x - 8 + 5x - 6 = 9x - 14
C) - (4x - 3 ) - (-5x + 6) = -4x + 3 + 5x - 6 = x - 3
D) - (8x- 3 ) - (- 4x +4) = -8x + 3 + 4x - 4 = -4x - 1
E) - (-7 + 2x ) - ( 8x - 12) = 7 - 2x - 8x + 12 = -10x + 19
Szczegółowe wyjaśnienie:
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Odpowiedź:
a) 4x - 5y - 6x + y = -2x - 4y
B) (4x - 8 ) + (5x - 6) = 4x - 8 + 5x - 6 = 9x - 14
C) - (4x - 3 ) - (-5x + 6) = -4x + 3 + 5x - 6 = x - 3
D) - (8x- 3 ) - (- 4x +4) = -8x + 3 + 4x - 4 = -4x - 1
E) - (-7 + 2x ) - ( 8x - 12) = 7 - 2x - 8x + 12 = -10x + 19
Szczegółowe wyjaśnienie: