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X+y=20 2x+2y=18 por método de reducción​

X+y=20 2x+2y=18 por método de reducción​
asked 233k views
4 votes
X+y=20 2x+2y=18 por método de reducción​

asked
User Dongshengcn
by
8.1k points

1 Answer

6 votes

Answer:

x-y = 20 ---(1)

2x+2y=18---(2)

=multiply equation (1) by 2+- =

=x2 = 2x-2y = 40

elimination method =

2x-2y=40

+ 2x+2y=18

-------------------

4x + 0 = 58

x=58/4 = 14.5

Hope it is correct

answered
User Luca Ditrimma
by
7.8k points
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