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Make r the subject of the formula x = (3r - 4)/5

Multiply both sides by 5: 5x = 3r - 4Add 4 to both sides: 5x + 4 = 3rDivide both sides by 3: (5x + 4)/3 = r

Answered by Oskar M. Maths tutor

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Answered by Oskar M.
Maths tutor

223 Views

See similar Maths GCSE tutors