Question

упрастите выражение
2a-(3b-a)+(3b-2a)
6(a-2)-3(2a-5)

Answer 1

2a-(3b-a)+(3b-2a) = 2a-3b+a+3b-2a = 2a+a-2a-3b+3b = a
6(a-2)-3(2a-5) = 6a-18-6a+10 = 6a-6a-18+10 = -8