Спростiть вираз: 3(4х - 2z) - (5z + 10х)

Question

Спростiть вираз: 3(4х - 2z) - (5z + 10х)

Answer 1

3(4х - 2z) - (5z + 10х)= 12х-6z-5z-10x=2x-11z

Answer 2

12х - 6z - 5z - 10x = 12x - 10x - (6z + 5z)= 2x - 11z