answers to discussion 1

Rearrange the formulae to make x the subject  (I) p + x = r  (ii) 2x + r = 4p  (ii) 3x = 2p + q  (iv) xy = uv  (v) 3x - 7y = 4z

Answers: (i) x = r - p (ii) x = 4p - r                2 (iii) x= 2p + q                3 (iv) x = uv              y (v) x = 4z + 7y                 3