Question

10y-5 (1+y)=3 (2y-2)-20



23×-16=14-17×​

Answer 1

10y-5 (1+y)=3 (2y-2)-20

10y-5-5y= 6y-6-60

10y-5y-6y=-60+5

-5y-6y= -55

-11y=-55

y= -55÷11

y= -5

23×-16=14-17×

23×+17×=14+16

40×=30

×=40÷30

×=1,33

Espero ter ajudado