Question

9⋅(3+y)−4y=6y−63 решите плиз

Answer 1

9⋅(3+y)−4y=6y−63
27+9y-4y=6y-63
6y-5y=27+63
y=90
Проверка
9*(3+90)-4*90=9*93-360=837-360=477
6*90-63=540-63=477
477=477

Answer 2

27+9у-4у=6у-63
27+63=6у-5у
90=у
у=90