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kumpel [21]
3 years ago
13

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

Mathematics
1 answer:
andrezito [222]3 years ago
7 0

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

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