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3x+5y=7 and 9x+11y=13. Solve to find the values of x and y that satisfy both equations.

As there are two unknowns we have to eliminate either the x or the y in order to be able to solve. You can see that in the first equation the x value is a multiple of the x value in the second equation. T...

GS
Answered by Georgina S. Maths tutor
4460 Views

Solve the following simultaneous equations: 3x - y = 1, 2x + 2y = 2

When we are asked to solve simultaneous equations, what we are being asked to do is find the point where two lines cross. In this case, where we are given two straight lines, there will only be one point ...

EH
Answered by Eleanor H. Maths tutor
6187 Views

How can I improve my Spanish/language learning outside of the session?

One of the ways I did it (and I cannot stress this enough) is to completely immerse yourself in the culture of the language that you are learning. Taking Spanish as an example, you really want to be tunin...

SM
Answered by Shelby M. Spanish tutor
2968 Views

Expanding a quadratic equation (x-3)(x-2)=0

Focus on the left hand side of the equation: (x-3)(x-2) These are two factors, basically that (x-3) is a number, and (x-2) is another number. (x-2)(x-3) is just showing that you're multiplying these numbe...

DW
Answered by Daniel W. Maths tutor
6655 Views

When do I use Sin, Cos and Tan?

Just remember SOH,CAH,TOA. It sounds like Sock-A-Toe-Ah. Quite strange but extremely effective. SOH means Sin=Opposite/Hypotenuse Cos=Adjacent/Hypotenuse Tan=Opposite/Adjacent The three letters in each ab...

DC
Answered by Darren C. Maths tutor
3553 Views

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