# Answer to Question #31968 in Linear Algebra for klara toleafoa

Question #31968

find the value of x in the following questions

4x=12

3x+16=37

4x=12

3x+16=37

Expert's answer

1) 4x=12

Dividing both parts of the equation by 4 we obtain

x=12/4=3

2) 3x+16=37

First let's transfer 16 to the right part of the equation so we have only terms containing x in the left part. Keep in mind that when transferring terms from one part to another we should change the sign in front of them:

3x=37-16

3x=21

Dividing both parts by 3 we get

x=21/3=7

Dividing both parts of the equation by 4 we obtain

x=12/4=3

2) 3x+16=37

First let's transfer 16 to the right part of the equation so we have only terms containing x in the left part. Keep in mind that when transferring terms from one part to another we should change the sign in front of them:

3x=37-16

3x=21

Dividing both parts by 3 we get

x=21/3=7

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