Question

помогите решить.
y:2+80=980

Answer 1

$y:2+80=980$
$y:2=980-80$
$y:2=900$
$y=2*900$
$y=1800$
ответ: 1800

Answer 2

2×900

Answer 3

y:2=980-80
y:2=900
y=900×2
y=1800