Answer:
x + y is 56 or
x+y=56
the difference means you subtract them..
so
x-y = 22
you have two equations and two unknowns, you can use elimination or substitution
x+y=56
x-y = 22
add the 2 equations together...
x+y=56
x-y = 22
and I get:
2x = 78 divide both side by 2
x = 78/2 = 39
substitute this back into the original equations (anyone of them) to find what y is equal to.
x+y=56
39 + y = 56
y = 56-39 = 17
so you get : x =39, y = 17
check your answers by substituting
x+y=56 39+17 = 56 check
x-y = 22 39 -17 = 22 check
