2. Linear Equations in One Variable

Solve the following equations.
1. x-2 = 7                             

Solution : We have , x-2 = 7

 ⇒x-2+2=7+2

⇒x=9 

2. y + 3 = 10    

Solution :  We have, y+3=10 

⇒y+3-3=10-3

⇒y=7           

3. 6 = z + 2

Solution : We have , 6=z+2

 ⇒6-2=z+2-2

 ⇒4=z

⇒z=4 
4. 37+x=177

Solution: We have ,

37+x=177

⇒x=177-37

⇒x=17-37

⇒x=147

⇒x=2