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  • Roma
  • Community Manager
2010-01-04T22:59:48+01:00
( 4y = 3x - 4
( 2x = - 3(y-5) - 1

( - 3x + 4y = - 4
( 2x = - 3y +15 - 1

( - 3x + 4y = - 4 /*2
( 2x + 3y = 14 /*3

( - 6x + 8y = - 8
( 6x + 9y = 42
________________
- 6x + 6x + 8y + 9y = - 8 + 42
17y = 34 /: 17
y = 2

2x + 3y = 14
2x + 3*2 = 14
2x + 6 = 14
2x = 14 - 6
2x = 8 /:2
x = 4

( x = 4
( y = 2
1 5 1