Question

Решите плиз, (5у-7)2-(3у-2)3=53

Answer 1

$frac{5y-7}{2} - frac{3y-2}{3} = frac{5}{3} ; |*6 \ frac{6(5y-7)}{2} - frac{6(3y-2)}{3} = frac{5*6} {3}; \ 3(5y-7)-2(3y-2)=5*2;$

15y-21-6y+4=10;
9y-17=10
9y=10+17
9y=27
y=27:9
y=3