" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
3x + y = 4 / * (-3)
2x+ 3y = 5
- 9x - 3y = -12
podkreślic z boku i od doły . z boku narysowac/napisac +
2x - 9x = =- 7
-7x = -7 /: -7
x=1
2x + 3y = 5
2 *1 + 3y=5
2+3y=5
3y=5-2
3y=3/:3
y=1
x=1
y=1
3x + y = 4 /*(-3)
2x + 3y = 5
-9x - 3y = -12
-7x = -7
x = 1 --> y = 4-3x
y = 1
x = 1
y = 1