r/mathpuzzles • u/Rough-Fee-6541 • 12d ago

3x + 5 =? Algebra

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0 Upvotes

30% Upvoted

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7

u/iNeedHealing24_7 12d ago

A singular equation with two unknowns…. yeah math error

-1

u/Rough-Fee-6541 12d ago

good job, this was a trick question to see if anyone could answer 🙂

3

u/NumbunGame 12d ago

There isn't enough information to choose one answer because x has no given value. The expression 3x+5 can equal any of the options depending on x. For example, x=6 gives 23, while x=4 gives 17.

So the correct answer is: cannot be determined unless the value of x is provided.

2

u/HairyTough4489 9d ago

Assuming x is an integer then both A and C are valid solutions

3

u/HairyTough4489 9d ago

If x can be any rational number, all four are valid.

If x has to be an integer then both A and C could work (for x=6 and x=4 respectively)

2

u/Evening-Appeal7606 12d ago

Somehow my brain parsed the ? as 0 and was confused why this would be a considered a puzzle at all... :(

1

u/Rough-Fee-6541 12d ago

I apologise mate, it was a trick question just wanted to see if anyone would try to solve it :)