Question

Sum of two numbers is 7 and their difference is 5. Find the number​

Answer 1

Step-by-step explanation:

let two number be X and Y

so by 1st condition

X+Y=7 -------1

from 2nd condition

X-Y=5--------2

so adding 1 and 2

X + Y =. 7

+ X - Y =. 5

---------------

2X=12

X=12÷2

X=6

put X in eqn 1 and get value of Y and here are your numbers