/sci/ - Science & Math

>>7530952
3

52/14

>>7530955
correct
>>7530957
wrong

3

>>7530952
2B = 76 - 38 =38 => B = 16
=> A = 38 + 16 = 3B
3

A+B + A - B = 76 + 38
2A = 114
A = 57
B = 76-57
B = 19
A/B = 57/19 = 3

>iq test
>year 9 maths

>>7530952
(A+B)=76
(A-B)=38
(A+B)+(A-B)=76+38=114
(A+A)+(B-B)=114
2A=144
A=114/2=57

A+B=57+B=76
B=76-57=19

A/B=57/19=3

That's elementary school stuff

>>7530964
(A+A)+(B-B)=114
2A=144

>why.jpg

>>7530968
Typo

>>7530952
(A+B) + (A-B) = 114
2A= 114
A=57
57-B =38
B=19
57 / 19 = 3

>>7530952
zero. it's always zero.

>>7530952
(A + B) - (A - B) = 38
A + B - A + B = 38
2B = 38
B = 19

76 - B = A
76 - 19 = A
A = 57

>>7531587
Shit.
57 / 19 = 3

That's what always got me on the tests, I never read the instructions the whole way.

(A+B)-(A-B) = 2B
(A+B)+(A-B) = 2A

2A/2B = ...?

>>7530952
A=76-B
76-B-B=38
-2B=38-76
B=-19

A-(-19)=38
A+19=38
A=38-19
A=19

A/B=19/(-19)=1

easy. most people ITT are dumb as fuck lol

>>7531665
so elegant

>>7531715
>-2B=38-76
>-2B=-38
>B=-19
retard detected

>>7530952

a+b=76
a-b=38
38+2b=76
b=19
a=76-19=57
57/19=3

>>7531721
I haven't had math in years m8. That's why I made my post look like a subtle bait in hope someone tries to correct me. Im going to uni in 2 weeks, prolly gonna kill myself by the end of this year. Thanks for the (You), I appreciate it

A + B = 76
A - B = 38
2A = 114, A = 57

57 - 38 = 19 = B
57 / 19 = 3

A= 76-B
(76-B) - B = 38
B[(76-1) - 1] = 38
74B = 38
B = 19/37
A = 2793/37
A / B = 147

>(A+B)+(A-B)=76+38=114
>(A+A)+(B-B)=114

a must be retarded cus a cant understand this part

>>7530952
rref {{1, 1, 76},{1, -1, 38}} -> (A, B) = (57, 19) -> A/B = 3

E Z P Z le mon squee Z

76/2=38
38/2=19
76-19=57
57/19=3
The answer is 3

>>7530952
- 1 / 1 2
1
/
1
2

>>7531772
>(76-B) - B = 38
>B[(76-1) - 1] = 38
wat

2

Currently at a CC taking Differential Equations.

>>7530963
>year 9
I went to American public school, and I learned this shit in 7th grade.

>>7530952
A+B=76=2*38=2*(A-B)
A+B=2A-2B
3B=A
A/B=3

>>7530963
>>7530964
I dont remember being taught this in public school. Did you guys go to a private school or something

>>7532418
just algebra man

>actually calculating a and b
>not just solving a+b=2(a-b)
I shig at you all

>>7532418
It's linear algebra; you see two equations with two unknowns and know you can solve them by manipulating them in mathematically sound ways.

>>7533112
>linear algebra
>systems of equations

Fucking lmao no its not linear algebra at all

680 lel

A + B = 76
A - B = 38

2A = 114
A = 57

2B = 38
B = 19

A / B = 57 / 19 = 3

>>7531715
>>7531733
You're a fucking idiot. I feel sorry for you.

why 3? its 1 you fucks

>>7530952
2B = 38 so B = 19.
A+19 = 76 so A = 57
57/19 = 3

>>7533440
A/B =1

A = B

A - B = 38

38 = 0

QED

76-38=38, 38/2=19
19+38=57
57=A
19=B
57/19=3
rekt

>>7531715
lel