Question

If x+2=y and y^2-x^2=40 what is the value of x+1?

Answer 1

if x + 2 = y that means x - y = 2 agree?

Answer 2

oh yes! :)

Answer 3

but then wat?

Answer 4

@mathsuxx123

Answer 5

x=y-2
y^2-(y-2)^2=40
solve for y , I got y =11 therefor x =11-2 =9 --> x+1=10

Answer 6

oh okay got it! Thank you so much :)

Answer 7

@mathsuxx123
that is actually incorrect :)
if x + 2 = y then x - y = -2

Answer 8

@yummydum but @Loser66 ways works too

Answer 9

@karolinarivas5 yes i know his way works best, i was just pointing out a mistake, irrelevant :)

Answer 10

oh okay! thank you! :)

Answer 11

yes @yummydum thank you for that correction