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The point $(a, b)$ lies on the line with the equation $3x + 2y = 12.$ When $a = 4$, what is the value of $b$?

 Apr 9, 2019
 #1
avatar+106519 
+1

"a" = x = 4

 

So

 

3(4) + 2y = 12

 

12 + 2y  = 12         subtract 12 from both sides

 

2y = 0      divide by 2 on both sides

 

y = 0   = " b "

 

 

cool cool cool

 Apr 9, 2019
 #2
avatar+172 
+1

Thanks so much that was fast!

 Apr 9, 2019
 #3
avatar+106519 
0

OK......

 

cool cool cool

CPhill  Apr 9, 2019

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