SOLUTION: 9x-8y+4 if x=1 and y = 9= 9x1-8 [9]+4 9-72+4= -63+4=59 ans I saw this solution on a math site My question is how do they came up with 72 and 63 in the equation. in order to ge

Algebra ->  Equations -> SOLUTION: 9x-8y+4 if x=1 and y = 9= 9x1-8 [9]+4 9-72+4= -63+4=59 ans I saw this solution on a math site My question is how do they came up with 72 and 63 in the equation. in order to ge      Log On


   

Question 16583: 9x-8y+4 if x=1 and y = 9=
9x1-8 [9]+4
9-72+4=
-63+4=59 ans
I saw this solution on a math site
My question is how do they came up with 72 and 63 in the equation. in order to get the answer 59
I dont know what number was multiply
Thank you
Answer by pwac(253) About Me  (Show Source):
You can put this solution on YOUR website!
8 times 9 =72
9-72+4= do the sum in order given from left to right
9-72=-63 (note 63 is negative)
-63+4=-59 answer.(note this is negative also)
Pete