SOLUTION:

Question 463367:
Answer by algebrahouse.com(1659) (Show Source): You can put this solution on YOUR website!
7x + 8y = 24
x - 8y = 8
------------
8x = 32 {added the two equations together}
x = 4 {divided both sides by 8}

7x + 8y = 24 {top equation}
7(4) + 8y = 24 {substituted 4, in for x, into top equation}
28 + 8y = 24 {multiplied 7 by 4}
8y = -4 {subtracted 28 from both sides}
y = -1/2 {divided both sides by 8}

x = 4 and y = -1/2

For more help from me, visit: www.algebrahouse.com