Question

Which one of these equations is correctly written in Standard Form?

x + 7y = −21

−7x + y = −21

7x + 1.5y = −3

My answer is 7x + 1.5y = −3
Am I right? :)

Answer 1

I thought Standard form was ax + by= c ???

Answer 2

Me too!

Answer 3

Im a little confused...

Answer 4

wasn't it already in that form? >.<

Answer 5

Which one?

Answer 6

the one u got

Answer 7

the original equation..

Answer 8

Hint: all 3 values a, b, c must be integers

Answer 9

some books (not all) make 'a' a positive integer

Answer 10

Okay thanks! :)