1 Answer

Rlms · Answer 1 · 2017-01-11T19:51:38+0000

to sub, solve for 1 variable
solve for y

14-4x=2y
divide by 2
7-2x=y
sub 7-2x for y

(7-2x)+2x=7
7-2x+2x=7
7=7
true
answer is infinite olutions since everybody cancled out

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