Question 502809
4(-3x-5)-(10+4x)


4(-3x-5)-1(10+4x)


4(-3x)+4(-5)-1(10)-1(4x)


-12x-20-10-4x


(-12x-4x)+(-20-10)


-16x-30


So 4(-3x-5)-(10+4x) = -16x-30