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100% - 30% = 70%£50 = 70%£50/70 = 0.714£0.714 = 1%100% = £71.4
To solve, begin by multiplying both sides of the first equation by 3. This will make the coefficients of y in each equation an equal value of 3. With 15x + 3y = 63 and x -3y = 9, we can now simply add the...
To get an example of what this question is asking: the expansion of (1+x)^2 can be found by distributing and gives 1+2x+x^2. The coefficient of the x^2 term here would be 1, and for the x^1 term it would ...
Square root of 36 = -6,6
Expand the brackets to get:= 5x + 10 - 18 + 3xThen collect like terms:= 8x-8Take out a common factor:= 8(x-1)
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