solve for x
2007-02-04 04:47:11 · 17 answers · asked by chickiejam 1 in Science & Mathematics ➔ Mathematics
4x - 5 = -3x +2
add 3x to 4x so you get 7x
7x -5 = 2
add 5 to 2 so you get 7
7x = 7
then divide 7 by 7
x = 1
2007-02-04 04:51:05 · answer #1 · answered by maddog 2 · 1⤊ 0⤋
it's 1,maybe
4x - 5 = -3x + 2
4x + 3x = 2 + 5
7x = 7
x = 7 / 7
x = 1
2007-02-04 12:53:38 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Isolate for x by reverse operations:
4x - 5 = -3x + 2
4x = 5 + -3x + 2
4x + 3x = 5 + 2
7x = 7
x = 7/7 = 1
2007-02-04 12:49:14 · answer #3 · answered by Anonymous · 1⤊ 0⤋
4x - 5 = -3x + 2 (Add 5 and 3x to both sides)
7x = 7 (Divide both sides by 7)
x = 1
Check:
4(1) - 5 = -3(1) + 2
4 - 5 = -3 + 2
-1 = -1
QED
2007-02-04 12:57:34 · answer #4 · answered by CSUFGrad2006 5 · 0⤊ 0⤋
4x-5=-3x+2 Add 3x to both sides
7x-5=2 Add 5 to both sides
7x=7 Divide both sides by 7
x=1
2007-02-04 12:50:00 · answer #5 · answered by violentquaker 4 · 1⤊ 1⤋
4x - 5 = -3x + 2
7x - 5 = 2
7x = 7
x = 1
2007-02-04 12:49:53 · answer #6 · answered by pinkfudge27 4 · 1⤊ 1⤋
First: combine "like" terms --- add 5 with both sides (when you move a term to the opposite side, always use the opposite sign)....
4x - 5 + 5 = - 3x + 2 + 5
4x = - 3x + 7
Sec: add 3x with both sides...
4x + 3x = - 3x + 3x + 7
7x = 7
Third: isolate "x" on one side --- divide both sides by "7"...
7x/7 = 7/7
x = 1
2007-02-04 13:22:01 · answer #7 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
Transposing , you have 4x + 3x=2 +5, or 7x=7, thus x =1
2007-02-04 12:50:38 · answer #8 · answered by WC 7 · 1⤊ 2⤋
4x-5=-3x+2
4x+3x=2+5 (Take variables on left side,constant on right side,then simply add .)
=>7x=7
=>x=7/7
=>x=1 ans.
2007-02-04 12:59:00 · answer #9 · answered by jigs 1 · 0⤊ 0⤋
Add 3x from both sides:
7x-5=2
Add 5 from both sides:
7x=7
Divide 7 from both sides:
x=1
Check:
4(1)-5=-3(1)+2
4-5=-3+2
-1=-1
2007-02-04 12:53:36 · answer #10 · answered by Anonymous · 0⤊ 0⤋