# How do you solve the system of equations algebraically #1.8x-z=0.7, 1.2y+z=-0.7, 1.5x-3y=3#?

##### 1 Answer

Dec 30, 2016

#### Answer:

#### Explanation:

The three equations are

**...........................(1)**

**...........................(2)**

**...........................(3)**

Note that adding (1) and (2) eliminates

**...........................(4)**

Now multiplying **(3)** by **(4)** by

Hence

Putting this in **(3)** we get

Hence

Now putting this in **(1)** , we get

Hence solution is