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Secondary 1 | Maths
2 Answers Below
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Pls help
Date Posted: 4 years ago
Views: 295
What is the qns? Solve? Expand? Factorise?
To solve the qns.
x-4(x-3)=3(5+2x)
You should always solve the brackets first so expand them:
x-4x+12=15+6x
Take note if “-“ x “-“ it should be “+” its the law.
Then u solve them, always make “x” positive cuz it will be easier to solve.
6x+4x-x-12+15=0
X+3=0
Then
X=-3
Cuz u bring over from “+” to “-“
THIS IS THE CORRECT VERSION!!
The photo got mistake.
x-4(x-3)=3(5+2x)
You should always solve the brackets first so expand them:
x-4x+12=15+6x
Take note if “-“ x “-“ it should be “+” its the law.
Then u solve them, always make “x” positive cuz it will be easier to solve.
6x+4x-x-12+15=0
X+3=0
Then
X=-3
Cuz u bring over from “+” to “-“
THIS IS THE CORRECT VERSION!!
The photo got mistake.
Both are incorrect at the 2nd last step. Realise that 6x + 4x - x = 9x, not x
Edit: a better way is to group all x terms on one side and constants on the other side.
Edit: a better way is to group all x terms on one side and constants on the other side.
Hii everyone thx for replying to my question quick :)
See 2 Answers
done
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Hope this helps
Date Posted:
4 years ago
Hii thx for the helppp
done
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If its solve this is the way
Date Posted:
4 years ago
You confused yourself when you tried to shift everything to one side. Your error(s) came in from solving (6x + 4x - 12 + 15 - x = 0) onwards.
But still, train of thought is there.
But still, train of thought is there.
Probably just carelessness in that 6x + 4x - x = 9x instead of x
Yeah.
And X + 3 = 0 doesn’t lead to x = 3
Careless mistake it is!
And X + 3 = 0 doesn’t lead to x = 3
Careless mistake it is!
x + 3 she addressed in the main comments section already. But not the other one.
Ah, I must have missed the comment. Thanks for pointing out!
Thanks guys For correcting me:)
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