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First solve the equation with only one unknown to find y:y-6=15Add 6 to both sides to get the value of y:y=15+6y=21Now there is only one unknown we can solve for x:x+21=11x=11-21x=-10Check the values are ...
Firstly, remember to factorise!x^2+2x-15 = (x+5)(x-3)∴ the numerator and denominator now both share a common term "(x+5)", so they can cancel one another out, leaving the answer as :...
Show 3/5 as a decimal: 0.60.7 + 0.6 = 1.3ORShow 0.7 as a fraction: 7/10 Find a common denominator: 3/5 = 6/107/10 + 6/10 = 13/10 or 1 and ...
By Elimination:We can add the equations together because +2y and -2y will cancel out: 2x + 4x = 14 + 10This gives 6x = 24, so x = 4We can put x back int...
We can call the sides of the equal lengths "x".We can then make an equation to satisfy the relationship between the perimeter and the length of the sides as follows:x + x + x + (x + ...
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