Posted by carol on Monday, May 2, 2011 at 11:34am.
use the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this 3x + 24y = 24s,27x – 15y = 15 .

math  PsyDAG, Monday, May 2, 2011 at 11:41am
3x + 24y = 24
27x – 15y = 15
Divide first equation by 3.
x + 8y = 8
Transpose y term.
x = 8  8y
Substitute 88y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation. 
math  bobpursley, Monday, May 2, 2011 at 11:41am
3x+24y=24
27x 15y=15
solve for x in the first equation.
x= y+8
put that in the second equation
27(y+8)15y=15
solve for y
Then put that y back into the first equation, solve for x.