Question

the sum of two numbers is 165 and thier diferrence is 29, fid the numbers?

Answer 1

x+y = 165
x-y = 29

now solve the system of equation using substitution :)

Answer 2

show me how

Answer 3

for the first equation, isolate y.
so y = 165 - x
then substitute the first equation into the 2nd equation
x-(165-x) = 29
simplify
2x-165 = 29
2x = 194
x = 97.
then substitute x into one of the equation, i'll use equation 2
97-y = 29
isolate the variable
-y = -68
y = 68.
the numbers are 68 and 97

Answer 4

x+y = 165 x-y = 29
2x=194
x=97
97+y=165
y=68

Answer 5

http://openstudy.com/groups/mathematics/updates/4e3cd4f60b8bfc76a3f69c8f

Answer 6

please award good answer so people know ur question is answered.