Solve -901*o + 4201*o + 491640 = -1520*o for o.
Solve this plz.

A: -102

Solve 216*t + 28379 = -151*t - 28670 + 20349 for t.
Solve this plz.

A: -100

Solve -98*y + 175 - 1498 = -147*y for y.
Solve this plz.

A:
27