różnica wyrażeń -5x+4y oraz 2x-3y jest równa ? ,z góry dziękuje ;*
(-5x+4y)-(2x-3y) = -5x+4y-2x+3y = -7x+7y = -7(x-y)
-5x + 4y - (2x -3y) = -5x + 4y - 2x + 3y = -7x +7y
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(-5x+4y)-(2x-3y) = -5x+4y-2x+3y = -7x+7y = -7(x-y)
-5x + 4y - (2x -3y) = -5x + 4y - 2x + 3y = -7x +7y