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Given the ratio of x : y is 7 : 4 and x + y = 88. Work out the value of x – y

7x = 4yx=4y/7If we insert this into our other equation.4y/7 + y = 8811y/7 =88y = 56As we knowx =4y/7X= 4*56/7 = 32Then we can work out the answer X - Y = 32 - 56 = -24

Answered by Salih K. • Maths tutor

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Given the ratio of x : y is 7 : 4 and x + y = 88. Work out the value of x – y

Related Maths GCSE answers

Solve algebraically for a and b: 6a+b=16, 5a-2b=19

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