Answers>Maths>GCSE>Article

Make a the subject of a + 3 = (2a + 7) / r

Multiply both sides by r: ra+3r = 2a + 7Move a to one side: ra -2a = 7-3rFactorise left hand side: a(r-2) = 7-3rMultiply both sides by (r-2): a= (7-3r) / (r-2)

Answered by Tilly G. • Maths tutor

4437 Views

See similar Maths GCSE tutors

Make a the subject of a + 3 = (2a + 7) / r

Related Maths GCSE answers

Factorise fully x^3 - 10x^2 + 16x

Solve 4(3x + 2) = 12 - 5x

The equation of the line L1 is y = 3x – 2 The equation of the line L2 is 3y – 9x + 5 = 0 Show that these two lines are parallel.

Solve these simultaneous equations algebraically: y=2x^2 - 7x + 4 & y=4x-1