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Solve the Equation: 2ln(x)−ln (7x)=1

This is an equation laid out in terms of the natural logarithm, which essentially is the reverse function of ex . From this equation we need to find a solution for x =? Since we know that this ...

Answered by Dhruv G. Maths tutor
5394 Views

Fahima buys 2 packets of bread rolls costing £1.50 for each packet 1 bottle of ketchup costing £1.60 3 packets of sausages Fahima pays with a £10 note. She gets 30p change. Fahima works out that one packet of sausages costs £2.30 Is Fahima right?

Let's denote the price of sausages as S as it's the only unknown.Let's use simple algebra to solve this.To find the total price of all of the items she purchased ( i.e. the value), we multiply price by th...

Answered by Maria C. Maths tutor
11029 Views

I don't understand how to expand and simplify brackets such as (x-3)(x+5)

In my opinion, the best way to expand and simplify brackets is to use the FOIL method which stands for the following:F - firstsO - outersI - innersL - lasts.This means that you multiply the first numbers ...

Answered by Sophie D. Maths tutor
3236 Views

3x+18=14x+2

Firstly you need to re arrange the equation in order to get x's on one side and the numbers on the other side.If you subtract 2 from both sides of the equations, you end up with 3x+16= 14x.Now if you subt...

Answered by Jerry G. Maths tutor
2954 Views

Simplify (a) p^2× p^5 (b) Simplify g^6 ÷ g^4

This question involves indices. To calculate the parts, we need to know some indices rules and what they are. Let's look at b^3 - b is the base number and 3 is the power number which shows how many times ...

Answered by Bessie S. Maths tutor
3155 Views

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