Respuesta :

Rewrite the equation as
4
x
+
r
x
+
6
=
y
4
x
+
r
x
+
6
=
y
.
4
x
+
r
x
+
6
=
y
4
x
+
r
x
+
6
=
y
Subtract
6
6
from both sides of the equation.
4
x
+
r
x
=
y

6