(6x+9y=78) - (6x+4y=38) = (5y=40) = y=8
(2x+3(8)=26) = (2x+24=26) = (2x=2) = x=2
Answer
2 + 2 = 21
Step-by-step explanation:
because, vine.
We can write the equation 9x=4500
Now we just solve for x by dividing both sides by 9 to get:
x=500
Hope this helps!
Answer:

Step-by-step explanation:








and 
Therefore, the values of
are 8 and -11.
Sqrt of 144 = 12 so in other words your answer is 12