добре съм, решавам си домашното, което е супер елементарно:
1. a) You spent three times as much as your friend last month when on holiday.
Together your spend comes to £1367.20 . What did you each spend? Marks
will be given for modelling the equations and the method of solution.
b) Rearrange to make P the subject
(i) S+ 4P = R (ii) S = TP (iii) T = (R-P)S (iv) T – P = SP
c) Solve for x, showing working
(i) 22 + 4x = 58 (ii) 3(x-2) = 27 (iii) x^2 + 5x + 6 = 0 (iv) (x – 7)/2 = 4

:Д