SOLUTION: system of equations 10x+20y=50 -15x+20y=50
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Question 267033
:
system of equations
10x+20y=50
-15x+20y=50
Answer by
drk(1908)
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here is the system
(i)
(ii)
step 1 - multiply (i) by (-1) to get
(iii)
step 2 - add (ii) and (iii) to get
(iv)
step 3 - divide to get
(v)
step 4 - find y and we get
(v)