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Original poster

Help me with maths

6 replies

wonderstuff · 12/06/2020 13:18

Why is it x=1 and not x=-1?

Help me with maths
OP posts:
tdm1 · 12/06/2020 13:20

Anything multiplied by zero is zero, so x = 1 - 0 = 1

Chemenger · 12/06/2020 13:20

Because y= 1 - (2x0) = 1

flamingochill · 12/06/2020 13:21

BODMAS means that you do the multiplication first

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General education
Kermitsbiggestfan · 12/06/2020 13:31

It's due to the order of operations. You need to work out what the 2x is first, then calculate 1 minus 2x.

Original poster
wonderstuff · 12/06/2020 13:33

Worked it out now Blush nothing like some year 7 maths to test your brain. For some reason we did the multiplication and then inverted the sum. "2x0 is 0 and then take away 1 to get -1..." now using paper and pen! Thanks guys.

OP posts:
Ladyface · 12/06/2020 13:34

This minus belongs to the 2 so it is -2 x0 which is 0.

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