2x - y = 5
更新1:
what about x + y = 4 again isolating the y
Linear system?
回答 (3)
2008-04-20 8:58 am
✔ 最佳答案
Question 12x = 5 + y
2x - 5 = y
Question 2
x + y = 4
y = 4 - x
2008-04-20 3:40 pm
2x - y = 5
-y = 5 - 2x
y = (5 - 2x)/-1
y = -5 + 2x
y = 2x - 5
-y = 5 - 2x
y = (5 - 2x)/-1
y = -5 + 2x
y = 2x - 5
2008-04-20 3:43 pm
add y to both sides, subtract 5 from both sides
2x - 5 = y
2x - 5 = y
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