Please can someone help me solve this linear algebra questio

Please, can someone help me solve this linear algebra question?

Write out a system of equations required to balance the following chemical reaction and solve.

SO₂ + NO₃ + H₂O-----> H + SO₄ + NO

where S represents sulfur, N represents nitrogen, H represents hydrogen, and O represents oxygen

Solution

4SO₂ + 3NO₃ + 2H₂O = 4H + 4SO₄ + 3NO

where S represents sulfur, N represents nitrogen, H represents hydrogen, and O represents oxygen