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Solve the simultaneous equations. 2x + y = 18 . x - y = 6

x = 6 + y
2(6+y) + y = 18
12+2y+y = 18
3y = 18-12
3y=6
y = 6/3 = 2. So y = 2 if y = 2 then x is = ?
x - y = 6 so, x-2 = 6
so x is 6+ 2 = 8
x = 8 and y = 2<...

OO
Answered by Olufunke O. Maths tutor
2973 Views

What course should I study at University if I dont know what career path I want to follow yet?

I would start by asking what your interests are and what you are passionate about. It is important to think of what you will enjoy studying at University and what you would be interested in learning more ...

OO
1532 Views

How do you integrate ln(x)?

Here, we use integration by parts. We must imagine ln(x) as a product of 1 and ln(x). We usually take the function of x to be our dv/dx, however, in the case of ln(x), we take that to be u (it is a specia...

OD
Answered by Omkar D. Maths tutor
3536 Views

How was the USA's defeat in Vietnam the result of a rise in protest culture in the US between 1961 and 1975?

Focal Points in the Essay:
Protest Culture: anti-war movement, civil rights movement, physical protests Economic ImpactAmerican tactical Failures Winning 'hearts and minds'Med...

SZ
Answered by Samantha Z. History tutor
1114 Views

Lottie has a bag of applies. She gives half of them to Fred. Fred eats two and then has four left. How many apples did Lottie have at the start?

General method
1.     Write the information down in equation form defining unique symbols to represent the unknowns2.     DOF analysis: Count the number of equations and unknowns? a.     If...

NG
Answered by Niraj G. Maths tutor
5012 Views

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