Question

-(x-4)(x+3)+x(x+3)=3x-7

Answer 1

-(x-4)(x+3)+x(x+3)=3x-7

(x+3)*(-(x-4)+x)=3x-7

(x+3)*(-x+4+x)=3x-7

(x+3)*4=3x-7

4x+12=3x-7

4x-3x+12=-7

4x-3x=-7-12

x=-7-12

x=-19