Question

Помогиите !!! .1. решите 6m +5n при m = - 5/6 , n = 0/4
2. упростите x - 4 - (3x + 2), 7a + 5b - 6a - 9b

Answer 1

6(-5/6)+5(0/4)=-5
7a+5b-6a-9b=a-4b