2(10-6x)=x-8x?

3 ⤊

algebra

2007-05-01 13:28:17 · 4 answers · asked by ur baby 1 in Science & Mathematics ➔ Mathematics

x=4

2007-05-01 13:32:36 · answer #1 · answered by Gman 2 · 2⤊ 1⤋

2(10-6x)=x-8x
20-12x=x-8x
20-12x=-7x
20-12x+7x=0
20-5x=0
20=5x
4=x

2007-05-01 21:43:07 · answer #2 · answered by bootis32 6 · 0⤊ 0⤋

2(10-6x)=x-8x
20-12x=-7x
-12x=-7x-20
-5x=-20
x=4

Check:
2(10-6(4))=4-8(4)
2(10-24)=4-32
2(-14)=-28
-28=-28

2007-05-01 20:35:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋

20-12x=-7x
20-12x+12x=-7x+12x

20=5x
4=x

2007-05-01 20:34:21 · answer #4 · answered by Dave aka Spider Monkey 7 · 1⤊ 0⤋