Question

How do you solve the system of equations `x+y=25` and `95x + 110y = 2600`?

Answer 1

You should get `y=15` and `x=10` by using simultaneous equations.

Explanation:

multiply `x+y=25` by `95` so that `95x` gets cancelled out from both sets of equalities.

After cancellation from subtraction, that would leave `15y=225` which can be simplified to give `y=15`.

Substitute `y` in `x+y=25` with 15.

That would result to `x` equating to `10`.