There are sum of two numbers their diffrence is 114 find the numbers

Question

System practice word problems set up eqation then solve

Answer 1

x and 128-x are the numbers

128-x-x=114

128-2x=114

-2x=114-128

-2x=-14

2x=14

x=14/2

x=7

128-7=121

7 and 121 are the numbers

or,...

x+y=128

x-y=114

add

2x=242

x=242/2

x=121

121+y=128

y=128-121

y=7

7 and 121 again