Could some1 please show the steps to the following questions? Will choose first correct answer, ty!
1.) Using the substiute method: x + y = 6 y = 2x
2.) Using the addition method: x + y = 6 x – y = -2
2007-04-01 05:44:03 · 4 answers · asked by 511@ 4 in Science & Mathematics ➔ Mathematics
1.) Using the substiute method: x + y = 6 y = 2x
x + y = 6
y = 2x
x + 2x = 6
3x = 6 ; x = 2.
2.) Using the addition method:
x + y = 6
x – y = -2
-----------------+
2x + 0- = 4
x = 2
give me ten p;pints
the man above me didnt finish his work yet !
tsk tsk tsk
2007-04-01 05:48:29 · answer #1 · answered by gjmb1960 7 · 1⤊ 0⤋
x + y = 6
y = 2x
Plug in y = 2x into the first equation.
x + 2x = 6
3x = 6
x = 2
Now that we have x, we can get y, since y = 2x.
y = 2(2) = 4
x = 2, y = 4
2007-04-01 12:47:16 · answer #2 · answered by Puggy 7 · 2⤊ 0⤋
1)x+y=6
y=2x
x+2x=6
3x=6
x=2
y=2(2)
y=4
The solution set is (2,4)
2)x+y=6,x-y=-2
x+y=6
x-y=-2
=====
2x=4
x=2
2-y=-2
-y=-4
y=4
The solution set is (2,4).
2007-04-01 12:56:19 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Need original question.
2007-04-01 12:51:27 · answer #4 · answered by dwinbaycity 5 · 1⤊ 1⤋