help me do this equation and plz show the formula thnx
2006-11-19 07:47:19 · 17 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
7x + 1 = 5x + 9
Here you go,
7x - 5x = 9 - 1
2x = 8
x = 8/2
x = 4
Have a nice day
:)
2006-11-19 07:48:25 · answer #1 · answered by Aqua 4 · 2⤊ 0⤋
Make your equation so all the numbers are on one side of the = sign, and all the variables on the other. Make sure you do the same to both sides:
7x + 1 -1 = 5x +9 -1 added -1 to each side, then simplify>>>
7x +0 = 5x +8
7x -5x = 5x +8 -5x added -5x to each side and simplify>>>
2x = 0x +8 = 8 >>>
2x = 8 Now divide both sides of the equation by 2 to get 1x>>>
2x/2=8/2 >>>>
x=4
2006-11-19 07:52:11 · answer #2 · answered by carrieinmich 3 · 0⤊ 0⤋
x=4
2006-11-19 08:06:06 · answer #3 · answered by Frank R 7 · 0⤊ 0⤋
x = 4
2006-11-19 07:58:52 · answer #4 · answered by W.orld F.amous 2 · 0⤊ 0⤋
The Answer is X=4
7X+1=5X+9
-5 -5
2X+1=9
-1 -1
2X/2=2/8
X=4
2006-11-19 07:53:33 · answer #5 · answered by Anonymous · 0⤊ 0⤋
subtract 5x from both sides
2x + 1 = 9
subtract 1 from both sides
2x = 9 - 1 = 8
divide both sides by 2
x = 8/4 = 2
2006-11-19 07:51:13 · answer #6 · answered by kellenraid 6 · 0⤊ 0⤋
x=4,
7x+1=5x+9 ; subtract 1 from both sides so the new equation is 7x=5x+8 ; then subtract 5x from both sides so it is now
2x=8 ; then just divide both sides by 2 and you got your answer! easy really.
2006-11-19 07:53:28 · answer #7 · answered by inubaby_617 1 · 0⤊ 0⤋
7x +1 = 5x +9
7x +1 -1 = 5x +9 -1
7x = 5x +8
7x -5x = 5x -5x +8
2x = +8
2x = 8
2x / 2 = 8 / 2 <2x divide by 2 = 8 divide by 2>
x = 4
2006-11-19 07:53:31 · answer #8 · answered by Tri 1 · 0⤊ 0⤋
7x+1= 5x+9
7x-5x=9-1
2x=8
x=8/2
x=4
2006-11-19 07:50:14 · answer #9 · answered by bigmoe980 1 · 0⤊ 0⤋
7x+1= 5x+9
7x-5x=9-1
2x=8
x=8/2
x=4 hope this helps !
2006-11-19 08:24:44 · answer #10 · answered by avant1991 3 · 0⤊ 0⤋