Usuń nawiasy i przeprowadź redukcję wyrazów podobnych.
7[2x-(3y+4x)]-6[2x-(3x+4y)]= 7[ 2x - 3y - 4x ] - 6[ 2x - 3x - 4y ]= 14x - 21y -28x - 12x +18x + 24y= -8x +3y
7 [ 2x - ( 3y + 4x )] - 6p2x - ( 3x + 4y )] = 7(2x-3y-4x)-6(2x-3x-4y)=7(-2x-3y)-6(-x-4y)=-14x-21y+6x+24y=-8x+3y
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7[2x-(3y+4x)]-6[2x-(3x+4y)]= 7[ 2x - 3y - 4x ] - 6[ 2x - 3x - 4y ]= 14x - 21y -28x - 12x +18x + 24y= -8x +3y
7 [ 2x - ( 3y + 4x )] - 6p2x - ( 3x + 4y )] = 7(2x-3y-4x)-6(2x-3x-4y)=7(-2x-3y)-6(-x-4y)=-14x-21y+6x+24y=-8x+3y