Question 306587
find the solution to the system by the addition method. Check your answers.

4x – 5t  = 18 ----- (i)
6x + 10t = -8 ----- (ii)
8x - 10t = 36 ----- (iii) ---- Multiplying eq (i) by 2


14x = 28 ---- adding eqs (ii) & (iii)


x = {{{highlight_green(2)}}}


Substituting 2 for x in eq (i), we get: 8 - 5t = 18


-5t = 10


t = {{{10/-5}}} = {{{highlight_green(-2)}}}


I'm sure you can at least do the check yourself!!