Verified Answer :

To solve for y we need to use d INVERSE OPERATION of addition which is subtraction. Then we will check our work:-

 
Lets do it:-

 
78 + y = 523

523 - 78 = 445

y = 445

 
CHECK OUR WORK:-

 
78 + y = 523

y = 445

78 + 445 = 523

We were RIGHT!!

 
So, y = 445

 
Hope I helped ya!! xD

78 + y = 523

Now, first lets start out by applying the inverse operation to isolate the variable.

78 + y = 523
-78         -78           ⇒  Inverse operation

523 - 78 = 445      

y = 445                   ⇒ We have our value for y

CHECK OUR WORK:-

78 + 445 = 523
523 = 523

Our answer is correct. 

Related Questions