need to show work
2007-01-09 10:44:23 · 12 answers · asked by Latinballa 1 in Science & Mathematics ➔ Mathematics
3(x-7)=9 solve for x
3(x-7)=9
(x-7)=3
x= 7+3
x=10 .
2007-01-09 10:47:32 · answer #1 · answered by tablecloth 1 · 0⤊ 0⤋
3(x-7)=9
3x - 21 = 9
3x = 9 + 21
3x = 30
x = 30/3
x = 10
2007-01-09 10:48:23 · answer #2 · answered by ♥kimbo141232 2 · 1⤊ 0⤋
3 (x - 7) = 9
3x - 21 = 9
3x - 21 = 9 + 21 (you transpose)
3x = 30
3x = 30 (divide both by 3)
x = 10
2007-01-09 10:52:49 · answer #3 · answered by HideAnotherMistake 2 · 0⤊ 0⤋
3(x-7)=9
3x-21=9
3x=9+21
3x=30
x=30/3
x=10
2007-01-09 10:50:04 · answer #4 · answered by lionheartlisa91 3 · 0⤊ 0⤋
I'll go step by step:
1. 3x-21=9 (use distributive property to multiply by 3)
2. 3x=30 (add 21 to both sides)
3. x=10 (divide both sides by 30)
hope this helps!
2007-01-09 10:52:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋
3x-21=9 (clearing parentheses)
3x=30 (adding 21 to both sides of the equation)
x=10 (dividing both sides of the equation by 3)
2007-01-09 10:50:11 · answer #6 · answered by Marc 1 · 0⤊ 0⤋
3(x-7)=9
(x-7)=9/3
x-7=3
x=3+7
x=10
2007-01-09 10:49:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋
3(x-7)=9
x-7=3
x=10
2007-01-09 10:52:27 · answer #8 · answered by adriantheace 4 · 0⤊ 0⤋
3(x-7)=9
x-7=3
x=10
2007-01-09 10:51:37 · answer #9 · answered by XOXOXO 3 · 0⤊ 0⤋
3(x-7)=9
x-7=3
x=10
2007-01-09 10:47:09 · answer #10 · answered by 7 · 1⤊ 0⤋