(х+10)(х-5)-(х-6)(х+3=16

Question

(х+10)(х-5)-(х-6)(х+3=16

Answer 1

(x^2-5x+10x-50)-(x^2+3x-6x-18)=16
x^2-5x+10x-50-x^2-3x+6x+18=16
x^2-5x+10x-x^2-3x+6x=16-18
8x=-2
x=-2/8
x=-1/4