Find the value of the parameter X
31โx+65โ=โ61โ
First, we will arrange the equation so that we have variables on one side and numbers on the other side.
Therefore, we will move 65โ to the other side, and we will get
31โx=โ61โโ65โ
Note that the two fractions on the right side share the same denominator, so you can subtract them:
31โx=โ66โ
Observe the minus sign on the right side!
31โx=โ1
Now, we will try to get rid of the denominator, we will do this by multiplying the entire exercise by the denominator (that is, all terms on both sides of the equation):
1x=โ3
x=โ3