SOLUTION: A television cost $7 less than four times the cost of a microwave. The cost of both items is $438.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A television cost $7 less than four times the cost of a microwave. The cost of both items is $438.      Log On


   

Question 999897: A television cost $7 less than four times the cost of a microwave. The cost of both items is $438.
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Let the cost of the microwave be M. Let the cost of the TV be T
You are told
T+=+4M+-7
You are also told
T+%2B+M+=+438
%284M-7%29+%2B+M+=+438
5M+-+7+=+438
5M+=+445
M+=+89
So the TV is %284%2A89%29+-+7 = 349
So the two items total to 438??