Ibby916
Ibby916
11-01-2018
Mathematics
contestada
What is x+4y=6 and y=-x+3 substituted
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altavistard
altavistard
11-01-2018
If x + 4y = 6 and you subst. -x+3 for y, you get x + 4(-x+3) = 6.
Then x - 4x + 12 = 6, or -3x = -6, or x = 2. Since y = -x+3, here y = -(2)+3 = 1.
Thus, the solution to this system of linear equations is (2,1).
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