help please: -5(2x-1)+6x=21?

5 ⤊

help please: -5(2x-1)+6x=21?

2007-11-28 13:46:03 · 4 answers · asked by funnybonez93 2 in Science & Mathematics ➔ Mathematics

4 answers

- 10x + 5 + 6x = 21
- 4x = 16
x = - 4

2007-11-28 23:30:39 · answer #1 · answered by Como 7 · 2⤊ 1⤋

-10x+5+6x=21
-4x=16
x= -4

2007-11-28 21:50:43 · answer #2 · answered by ? 2 · 1⤊ 1⤋

First distribute the number to the parentheses.
-10x + 5 + 6x = 21
Then combine the two terms with x.
-4x + 5 = 21
Then subtract 5:
-4x = 16
Then divide by negative 4.
x= -4
=)

2007-11-28 22:02:57 · answer #3 · answered by LindsayLou 4 · 1⤊ 1⤋

-10x+5+6x=21
-4x+5=21
-4x+5-5=21-5
-4x=16
-4x/-4=16/-4
x=-4

2007-11-28 21:49:51 · answer #4 · answered by Dave aka Spider Monkey 7 · 1⤊ 1⤋