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How do I solve simultaneous equations? Such as 2x + 4y = 8, 3x + 2y = 8.

There are two easy ways to solve simultaneous equations. Substitution and elimination. In order to work with substitution we must rearrange one equation to be equal to either x or y. In this case, 2x+4y=8, c...
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Answered by Cameron T. • Maths tutor
8586 Views

Integrate the function y = 2x^2 + 3x + 8 with respect to x.

Answer = 2x^3/3 + 3x^2/2 + 8x + CThis is an example of numerical integration from C1. To begin to answer this question, we can integrate each term at a time. To integrate this function, we raise the power of...
MC
Answered by Michael C. • Maths tutor
4758 Views

Solve 7x + 5 < 3 + 2x

7x &lt; -2 + 2x5x &lt; -2x&lt; -2/5
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Answered by Ben R. • Maths tutor
3344 Views

Solve the following pair of simultaneous equations: 5x+2y=8 and 2x+y=7

In my opinion the easiest way of approaching simultaneous equations is to first number your equations. 5x+2y=82x+y=7This helps avoid confusion later in the working. Next choose the variable you want to solve...
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Answered by Emmy H. • Maths tutor
4598 Views

Find the inverse of the function f(x) =2x-7.

Step 1) Replace f(x) with y: y= 2x - 7 Step 2) Switch around the x and y values: x = 2y - 7 Step 3) Solve to find y by itself: x = 2y - 7 x +7 =2y (x+7)/2 = y Step 4) Replace y with the f(x) notation for the...
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Answered by Nikita D. • Maths tutor
5129 Views