how do you solve this problem: x/2 + x/4=5
2007-12-02 06:16:24 · 9 answers · asked by ♥Savannah W♥ 2 in Science & Mathematics ➔ Mathematics
thanks for all the answers....they really helped....
2007-12-02 06:22:43 · update #1
multiply the whole equation by 4
u should get
2x + x = 20
3x = 20
x = 20/3 or 6 2/3
2007-12-02 06:19:17 · answer #1 · answered by broken_glass_101 3 · 1⤊ 0⤋
Most people don't like dealing with fractions so I suggest eliminating the denominators. To do this you multiply every term in the equation by the lowest common denominator. LCD of 2 and 4 is 4. So:
4*x/2 + 4*x/4 = 4*5 or 2x + x = 20
Now simplify:
3x = 20
Then Solve:
x = 20/3 or 6 2/3
2007-12-02 06:21:07 · answer #2 · answered by RighteousLee 1 · 0⤊ 0⤋
Multiply eq by 4:
2x+x=20
3x=20
x=20/3=6 2/3
2007-12-02 06:19:26 · answer #3 · answered by oldschool 7 · 0⤊ 0⤋
solve for x
(x/2) + (x/4) =5
2x/4 + (x/4) =5
3x/4 = 5
3x=20
x= 20/3
2007-12-02 06:20:54 · answer #4 · answered by PD 2 · 0⤊ 0⤋
x/2 + x/4=5
2x/4 + x/4 = 5
3x/4 = 5
3x = 4*5 = 20
x = 20/3 = 6 2/3
2007-12-02 06:20:38 · answer #5 · answered by ironduke8159 7 · 0⤊ 0⤋
X 4
2x + x = 20
3x = 20
x = 20/3
2007-12-02 06:20:00 · answer #6 · answered by norman 7 · 0⤊ 0⤋
Multiply both sides by 4.
2x + x = 20
3x = 20
x = 20/3
2007-12-02 06:19:57 · answer #7 · answered by Edgar Greenberg 5 · 0⤊ 0⤋
x/2+x/4=5
Multiplying by 4 on both sides,we get
4*x/2+4*x/4=4*5
2x+x=20
3x=20
or x=20/3 ans
2007-12-02 06:42:10 · answer #8 · answered by MAHAANIM07 4 · 0⤊ 0⤋
2x/4 + x/4 get 3x/4 = 5
----------------------------------
*4 = *4
3x = 20
/3 =/3
--------
x = 6.66666666667
6.66666666667 * 3 = 20 / 4 = 5
2007-12-02 06:53:49 · answer #9 · answered by ikeman32 6 · 0⤊ 0⤋