SOLUTION: four times a first number decreased by a second number is -38. The first number increased by four times the second number is 16. Find all numbers

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Question 726630:
four times a first number decreased by a second number is -38. The first number increased by four times the second number is 16. Find all numbers
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
4X-Y=-38 MULTIPLY BY 4 & ADD
X+4Y=16
16X-4Y=-152
--------------------
17X=-136
X=-136/17
X=-8 ANS.
4*-8-Y=-38
-32-Y=-38
-Y=-38+32
-Y=-6
Y=6 ANS.
PROOF:
-8+4*6=16
-8+24=16
176=16