Question 1066585

elimination 2a-4b=6
             -a+2b=-3
<pre> 2a - 4b = 6 -------- eq (i)
- a + 2b = - 3 ------ eq (ii)
  a - 2b = 3 -------- Factoring out GCF, 2 in eq (i) ------ eq (iii)
       0 = 0 -------- Adding eqs (iii) & (ii)
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