x + 6y = 27
7x - 3y = 9
x = 27 - 6y / 1
7x = 9 + 3y
x = 9 + 3y / 7
27 - 6y 9 + 3y
---------- ---------- = 1 (9 +3y) = 7 (27 - 6y)
1 7
9 + 3y = 189 - 42y
3y + 42y = 189 - 9
45y = 180
y = 180 / 45
(y = 4)
TENIENDO Y , HALLAMOS X:
x + 6 (4) = 27
x + 24 = 27
x = 27 - 24
(x = 3)
COMPROBAMOS!
3 + 6 (4) = 27
3 + 24 = 27
27 = 27
7 (3) - 3 (4) = 9
21 - 12 = 9
9 = 9
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x + 6y = 27
7x - 3y = 9
x = 27 - 6y / 1
7x = 9 + 3y
x = 9 + 3y / 7
27 - 6y 9 + 3y
---------- ---------- = 1 (9 +3y) = 7 (27 - 6y)
1 7
9 + 3y = 189 - 42y
3y + 42y = 189 - 9
45y = 180
y = 180 / 45
(y = 4)
TENIENDO Y , HALLAMOS X:
x + 6 (4) = 27
x + 24 = 27
x = 27 - 24
(x = 3)
COMPROBAMOS!
3 + 6 (4) = 27
3 + 24 = 27
27 = 27
7 (3) - 3 (4) = 9
21 - 12 = 9
9 = 9