ГДЗ Алгебра 8 клас Мерзляк (2025)

Виконайте дії:

1) x/6 + y/6 = (x+y)/6; 2) a/3 – b/3 = (a-b)/3;
3) m/n + 4m/n = 5m/n; 4) 6c/d – 2c/d = 4c/d;
5) (m+n)/6 – (m-2n)/6 = ((m+n)- (m-2n))/6 = (m+n-m+2n)/6 = 3n/6 = n/2;
6) (2a-3b)/6ab + (9b-2a)/6ab = ((2a-3b)+ (9b-2a))/6ab = (2a-3b+9b-2a)/6ab = 6b/6ab = 1/a;
7) (5c+4d)/cd + (4d+9c)/cd = ((5c+4d)+ (4d+9c))/cd = (5c+4d+4d+9c)/cd = (14c+8d)/cd;
8) (8m+3)/(10m^2 ) – (2m+3)/(10m^2 ) = ((8m+3)- (2m+3))/(10m^2 ) = (8m+3-2m-3)/(10m^2 ) = 6m/(10m^2 ) = 3/5m.