y= 4x + 10
2007-10-07 18:44:19 · 6 answers · asked by Flo 1 in Science & Mathematics ➔ Mathematics
5x + 4(4x +10) = -2
solve it now.
2007-10-07 18:53:39 · answer #1 · answered by Charu Chandra Goel 5 · 0⤊ 0⤋
5x + 4(4x + 10) = - 2
21x = - 42
x = - 2
y = 2
2007-10-08 03:04:00 · answer #2 · answered by Como 7 · 1⤊ 0⤋
5x + 4y= -2
5x + 4(4x + 10) = -2
5x + 16x + 40 = -2
21x = -42
x = -2
2007-10-08 01:47:58 · answer #3 · answered by Lucky 4 · 0⤊ 0⤋
5x+4y=-2------ no.1
y=4x+10--------no.2
sub no 2 into no 1
SO--- 5x+4(4x+10)=-2
-------- 5x+16x+40=-2
--------- 21x=-42
x=-42/21=-2
sub x into no.2
y=4(-2)+10
=-8+10
=2
2007-10-08 01:50:28 · answer #4 · answered by engchunh 1 · 0⤊ 0⤋
x = -2
y = 2
2007-10-08 01:50:40 · answer #5 · answered by im2stupiddotcom_AM 3 · 0⤊ 0⤋
hey i'm learning this too in my class.
2007-10-08 02:03:01 · answer #6 · answered by Stephen 3 · 0⤊ 0⤋