I tried to divide both side by x but the answer came out very horrible...I'm not sure which formular to use
2007-12-10 07:10:44 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
2 (x + 2) = 3 (x - 1)
2x + 4 = 3x - 3
7 = x
2007-12-14 02:11:16 · answer #1 · answered by Como 7 · 0⤊ 0⤋
You have to cross mulitiply so multiply 2 with x+2 and multiply 3 with x-1...this is how it will look...
2(x+2)=3(x-1) Now multiply it out
2x+4=3x-3 subtract 2x from both sides
4=x-3 Now add 3 to both sides
7=x
2007-12-10 15:21:53 · answer #2 · answered by ttipton24 2 · 0⤊ 1⤋
Cross multiply...
2 over (x-1) = 3 over (x+2)
= 3x-3=2x+4
= 3x=2x+7
= 1x=7
= 7
2007-12-10 15:16:17 · answer #3 · answered by f*** Y!A 5 · 0⤊ 1⤋
2/(x-1)=3/(x+2)
cross multiply
2(x+2)=3(x-1)
distribute the 2 and 3
2x+4=3x-3
subtract 2x from both sides
4=x-3
add 3 to both sides
7=x
x=7 is your answer
2007-12-10 15:19:32 · answer #4 · answered by Poke 2 · 0⤊ 1⤋
try cross multiplying
2(x+2) = 3(x - 1)
2x + 4 = 3x -3
4 + 3 = 3x - 2x
7=x
2007-12-10 15:13:36 · answer #5 · answered by Linda K 5 · 0⤊ 1⤋
2(x-1)=3/(x+2)
2x-2=x/3+ 3/5
uses distributive property
then simplify
final answer is...
2x-2=x/3 + 3/5
2007-12-10 15:15:56 · answer #6 · answered by Anonymous · 0⤊ 2⤋
cross multiply
X=7
2007-12-10 15:14:27 · answer #7 · answered by Walt C 3 · 0⤊ 2⤋