# How do you solve by substitution #3y=-1/2x+2# and #y=-x+9#?

##### 1 Answer

Jun 15, 2015

#### Answer:

For the given equations,

#### Explanation:

[1]

[2]

While it is not technically necessary, I find it easier to clear the fractions before actually beginning; so multiplying [1] by

[3]

Substituting (from [2])

[4]

Simplifying

[5]

[6]

[7]

Substituting (from [7])

[8]