# How do you solve the system 3x - 4y - 2z = 13, 2x + y + 2z = 5, 6x +2y - z = 16?

##### 1 Answer

Jan 26, 2018

#### Explanation:

Add Eqn (1), (2) to eliminate z

Multiply Eqn (3) by 2 and add to Eqn (2)

Find x & y by solving equations (4) & (5)

Multiply Eqn (4) by 5

Multiply Eqn (5) by 3

Adding Eqns (6) & (7)

Substituting value of x in Eqn (4)

Substituting values of x & y in Eqn (3)