Solve using the substitution method. Sh 3x + 24y = 24, 27x – 15y = -15 .
math - PsyDAG, Thursday, May 5, 2011 at 11:23am
3x + 24y = 24
27x - 15y = -15
Divide both sides of the first equation by 3.
x + 8y = 8
x = 8 - 8y
Substitute 8-8y 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.