Answer:
Y= 13 X= 14
Explanation:
X-Y=1 (add Y on both sides to cancel it out)
X=1+Y (now we pug in this for the next equation)
X+Y=27 is now (1+Y)+Y=27
1+Y+Y=27 (Combine like terms)
1+2Y=27 (Subtract 1 on both sides to cancel it out)
2Y=26 (Divide by 2 on both sides to cancel it out)
Y=13 (Now we plug it into the another equation)
X + Y = 27 is now X + 13 = 27
X+13=27 (subtract 13 on both sides)
X=14
ALWAYS CHECK YOUR ANSWER BY PLUGGING IT IN!!!
X-Y=1 is 14-13=1 Which is correct!!