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We want everything in terms of p so that there is only one unknown variable.If Tom scored 3x what John did, Tom scored 3 x p. This can be written as 3p.Their total marks are 188 so p (John's marks) + 3p (...

Showing each step of working is important.First, we need to rearrange one of the equations to solve for x or y.If we rearrange the first equation to solve for y in terms of x we get: y = 5 - 2x ( by subtr...

(a)STEP 1: Take out the coefficient of x^2 from the x^2 and x terms.
2(x)²+7x-3=0 2(x²+(7/2)x)-3=0
STEP 2: Complete the Square by finding (b/2)².
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