Question

Find two numbers whose sum is 30 and difference is 6

Answer 1

18 and 12 ..... is the answer

Answer 2

X+Y=30 & X-Y=6 THEN X=6+Y OR (6+Y)+Y=30 OR 6+2Y=30 OR 2Y=24 OR Y=12 THEN
X+12=30 OR X=30-12 OR X=18
PROOF 18+12=30 & 18-12=6