2007-12-18 05:09:29 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
2x + 2x + 6 = 6
x = 0
y = 6
FCH.
2007-12-18 05:12:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
2x + y = 6
y = 2(x + 3)
2 solution to both x and y
2x + 2(x + 3)=6
2x + 2x+ 6= 6
x= 0
y= 2(0 +3)
= 6
Ans: x=0 and y=6
2007-12-18 05:18:56 · answer #2 · answered by MG 2 · 0⤊ 0⤋
2x +y=6 and y= 2x +6.
2x + 2x +6 =6.
4x=0, x=0. and y=6.
2007-12-18 05:28:05 · answer #3 · answered by Sasi Kumar 4 · 0⤊ 0⤋
these are both equations for straight lines, you know this since x and y are to the first power in all cases. If you think about it, and scribble lines on paper, two straight lines can interset at most at one place, and the point of intersection represents the solution to the system of equations. If the lines are parallel, they will not intersect, and there is no solution to that set of equations. However, these lines do intersect at the point (0,6)
2007-12-18 05:18:08 · answer #4 · answered by kuiperbelt2003 7 · 0⤊ 0⤋
It has a unique solution since the coefficient matrix has an inverse
2007-12-18 05:16:57 · answer #5 · answered by lienad14 6 · 0⤊ 1⤋
2x + y = 6
2x - y = - 6----------ADD
4x = 0
x = 0
y = 6
Solution is x = 0 , y = 6
2007-12-18 06:20:55 · answer #6 · answered by Como 7 · 3⤊ 0⤋