# Question #9ab83

##### 1 Answer

#### Explanation:

Given three equation and three unknown

Step 1. Eliminate one unknown from first two equations. Let us take

Subtracting (2) from (1) we get

Step 2. Eliminate same unknown from next two equations. (one can choose last two as well).

Multiplying (2) with

We now have two equations (4) and (5) with two unknowns.

Step 3. Eliminate one unknown from these two equations.

We see that if we add these two we eliminate

Step 4. Insert this value of

Step 5. Insert these values of