Bentuk sederhana dari (12x-15y) - (16x+5y) adalah.... 2(x-5y) - 4(7x+5y) adalah....

(12x-15y) - (16x+5y) = 12x-15y-16x-5y= -4x - 20y

2(x-5y) - 4(7x+5y) = 2x-10y - 28x - 20y = 2x - 28x -10y-20y =-26x - 30y

(12x-15y)-(16x+5y)
=12x-15y-16x-5y
=12x-16x -15y-5y
=-4x-20y

2(x-5y)-4(7x+5y)
=2x-10y-28x-20y
=2x-28x -10y-20y
=-26x-30y

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