6/7??
explain please
2007-08-03 06:21:08 · 11 answers · asked by lasfklaf; 1 in Science & Mathematics ➔ Mathematics
(x +3) / 8 = x / 2
x + 3 = 8x / 2
x + 3 = 4x
3 = 3x
x = 1
Answer: x is 1.
2007-08-07 06:00:15 · answer #1 · answered by Jun Agruda 7 · 2⤊ 0⤋
x=1. 1st you multiply both sides by 16.{16*(x+3)/8=16*(x/2).then divide the 1st half of the equqtion by 8. Then the 2nd half by 2.which gives you 2(x+3)=8x.simplify the 1st half and you get 2x+6. now you have the equation 2x+6=8x .now subtract 2x from both sides both sides. this gives you 6=8x-2x;which in turn gives you 6=6x. now divide both sides by 6 which gives you 1=x or x=1. Does this help you?
2007-08-03 13:39:03 · answer #2 · answered by Robert W 1 · 0⤊ 0⤋
multiply both sides by 2, then (x+3)/4 = x, or x/4 + 3/4 = x. Now subtract x/4 from both sides: 3/4 = (3/4)x, so x = 1.
Test it: (1+3)/8 = 1/2 -- checks.
2007-08-03 13:26:53 · answer #3 · answered by John V 6 · 0⤊ 0⤋
Multiply both sides by 8 as that factors into both
x+3= 4x
Subtract X
3= 4x-x
Preform operations
3=3x
Divide both sides by 3
1=x
2007-08-03 21:33:27 · answer #4 · answered by tech_guy_towt 5 · 0⤊ 0⤋
Hey there!
Here's the answer.
(x+3)/8=x/2 --> Write the problem.
2(x+3)=8x --> Cross-multiply.
x+3=4x --> Divide both sides of the equation by 2.
3=3x --> Subtract x on both sides of the equation.
1=x --> Divide 3 on both sides of the equation.
x=1 Use symmetric property of equality i.e. if a=b, then b=a.
So the answer is x=1.
Hope it helps!
2007-08-03 14:14:24 · answer #5 · answered by ? 6 · 0⤊ 0⤋
multiply both sides of your equation with 8 since the LCM of your denominators is 8. Thus, you will have:
x + 3 = 4x
Solve for x:
3 = 4x - x
3 = 3x
1 = x
Therefore, x = 1.
2007-08-03 13:28:08 · answer #6 · answered by valkyrie 1 · 0⤊ 0⤋
X both sides by 8:-
x + 3 = 4x
3 = 3x
x = 1
2007-08-03 14:18:51 · answer #7 · answered by Como 7 · 0⤊ 0⤋
Multiply both sides by 8 to get rid of the denominators and then simplify.
2007-08-03 13:25:55 · answer #8 · answered by airjarrod 7 · 0⤊ 0⤋
(x+3)/8=x/2 Just cross multiply getting:
8x = 2x+6
6x=6
x=1
2007-08-03 13:33:14 · answer #9 · answered by ironduke8159 7 · 0⤊ 0⤋
OMG Can you people stop helping her. She is obviously using you to do all of her homework. Its all 7th grade algebra and she should know it all. If you keep helping her she will never learn.
2007-08-03 13:30:03 · answer #10 · answered by dudas_91 4 · 0⤊ 0⤋