# how to change rhs() of an equation in an equation list

Hi

sorry for this basic question !

```
var('x y')
eqT=[x==3,y==4]
show(eqT[0].rhs())
((eqT[0]).rhs())=5
```

I got this mesage:

**File "<ipython-input-55-19bf87f1683d>", line 4
((T[Integer(0)]).rhs())=Integer(5)
SyntaxError: can't assign to function call**