How can i explain if 3x+4y=11, y=-3/4x+12 have any solutions?
回答 (4)
2009-06-27 11:01 am
✔ 最佳答案
Solve by using substitution.3x + 4y = 11
y = [-3/4(x) + 12] ...... (1)
3x + 4y = 11
Substitute (1) for y.
3x + 4[-3/4(x) + 12] = 11
3x + (-3x) + 48 = 11
3x - 3x = 11 - 48
0 = -37
(no solutions)
2009-06-27 10:10 am
They are 2 parallel lines,draw them.
2009-06-27 9:58 am
2009-06-27 9:56 am
they are parall no solution
收錄日期: 2021-05-01 12:31:55
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