-4(3-6d)=9(2d-2)?

3 ⤊

algebra

2007-05-01 13:36:17 · 4 answers · asked by Mayra M 1 in Science & Mathematics ➔ Mathematics

-4(3-6d)=9(2d-2)
-12+24d=18d-18
+18
6+24d=18d
-24d
6= -6d
/-6
-1=d

2007-05-01 13:44:17 · answer #1 · answered by Cherriest 7 · 1⤊ 0⤋

-4(3-6d)=9(2d-2)
-12+24d=18d-18
24d-18d=-18+12
6d=-6
d= -1

2007-05-01 20:43:16 · answer #2 · answered by jay gal 3 · 1⤊ 0⤋

-12+24d=18d-18
-12+6d=-18
6d=-6
d=-1

Check:
-4(3-6(-1))=9(2(-1)-2)
-4(3+6)=9(-2-2)
-4(9)=9(-4)
-36=-36

2007-05-01 21:04:50 · answer #3 · answered by Anonymous · 0⤊ 0⤋

-12+24d=18d-18
-12+12+24d=18d-18+12
24d=18d-6
24d-18d=18d-18d-6
6d=-6
d=-1

2007-05-01 20:46:06 · answer #4 · answered by Dave aka Spider Monkey 7 · 1⤊ 0⤋