1.Rożwiąż układ równań metodą dodawania stronami
-8x + 3y = -3
8x - 5y = 1
2.Rożwiąż układ równań
6 (0,5x - y) = -3x
+5x - y = 1/6 - to jest ułamek
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1.
-8x + 3y = -3
8x - 5y = 1
-------------------
- 2y = -2
y = 1
8x - 5y = 1
8x - 5*1 = 1
8x - 5 = 1
8x = 1 + 5
8x = 6
x = 6/8
x = 3/4
x = 3/4
y = 1
2.
6 (0,5x - y) = -3x
+5x - y = 1/6 /*(-6)
3x - 6y = -3x
-30x + 6y = -1
6x - 6y = 0
-30x + 6y = -1
---------------------
-24x = -1
x = 1/24
5x - y = 1/6
5 * 1/24 - y = 1/6
5/24 - 1/6 = y
y = 5/24 - 4/24
y = 1/24
x = 1/24
y = 1/24