1 = 2 

The equation of choice among math paradoxers and recreational mathematicians, who unspokenly derive much satisfaction in exposing students’ fallacious or illogical reasoning that leads to the contradictory result.

Be it due to division by zero or squaring (or square rooting) both sides of an equation, few students wouldn’t want to know why “1 = 2” is logically plausible.

1 = 2 by Fasters May 3, 2022

1 = 2 

The person before made a mistake in their proof.
1. x = y
2. xy = y^2
3. xy - x^2 = y^2 - x^2
4. x(y - x) = (y + x)(y - x)
So far so good.
4.5. x = (y + x)(y - x)/(y - x) is what they did to get to step 5, which says:
5. x = y + x

This is wrong though. since x = y, y -x = 0, and so you can't divide by y - x.

Anyone who says 1 = 2 is wrong.

1 != 2

1 = 2 by mathisfun March 17, 2008

1 = 2 

1. x = y
2. xy = y^2
3. xy - x^2 = y^2 - x^2
4. x(y - x) = (y + x)(y - x)
5. x = y + x
6. x = x + x
7. x = 2x
8. 1 = 2

QED

As proven, 1 = 2, thus 0 = 1, etc. And so for any number i, there is an equivalent j that is not equal to i.

This is further explained in the Identity Theft Theorem.

1 = 2 by SAH aka the GSH October 17, 2006

1 + 1 = 2 

It has taken years for scientists to do all the studies to thus prove that 1 + 1 is actually 2. After a long and hard (lol, long and hard) test involving one apple, than adding another. The tests were proven that 1 + 1 is in fact, 2.

White boy: Omg, this is so hard, could you help me with my math?

white boy 2: Errr, the answer to that question is. 1 + 1 = 2.

1 + 1 = 2 by Anti Bit February 4, 2009

1 + 1 = 2 

When a math is close to, if not OBVIOUSLY easy

or you just don't want to help the person finding the answer

Person 1: Arrgh! i just cant get this right, could you please help me?

Person 2: Yeah, 1 + 1 = 2

1 + 1 = 2 by TheLittleMe October 4, 2011

3 + 2 = 1 

A mathematical statement most grades K–2 students would disqualify as being an equation, thus revealing their partial understanding of the meaning of an equals sign, which has different meanings.

What percentage of elementary math students (and their teachers and parents) would claim that statements like 1 + 3 = 2, 3 + 2 = 1, and 2 × 3 = 1 aren’t equations, because the sum or product is incorrect?

3 + 2 = 1 by Fasters May 9, 2022

1 + 2 + 3 = 1 × 2 × 3 

The nontrivial solution to the equation a + b + c = a × b × c, where a, b, and c are positive integers—the sum and the product of three whole numbers are the same.

Besides 1 + 2 + 3 = 1 × 2 × 3, the numbers 1, 2, and 3 form the set of three integers such that each divides the sum of the other two, and their reciprocals show that the number 1 can be expressed as the sum of three unit fractions: 1 = 1/2 + 1/3 + 1/6.

1 + 2 + 3 = 1 × 2 × 3 by Fasters May 11, 2022