Question

помогите решить уравнения(10y+2*(7y-2))=(5*(4y+3)+3y)     (8*(3m-2)-13+(5*(12+3m)+28

Answer 1

(10y+2*(7y-2))=(5*(4y+3)+3y)

10у+14у-4=20у+15+3у

 10у+14у-20у-3у=15+4

у=19

 

 (8*(3m-2)-13=(5*(12+3m)+28

24m-16-13=60+15m+28

24m-15m=60+28+13+16

9m=117

m=117/9

m=13