6(2x-3y)-3(3x-2y) При x = 21 и y = -30

Question

6(2x-3y)-3(3x-2y)
При x = 21 и y = -30

Answer 1

6(2*21-3*(-30)-3(3*21-(2*(-30)=6(42-90)3(42-60)=252-540-126-180=360-126=234