Does anyone know how to solve this please
1/4 x + 3/2 x =7
I could not post it correctly but it should be 1 over the 4 plus 3 over the 3 , written correctly should be fractions
2007-10-12 06:26:40 · 7 answers · asked by jllanos73 2 in Science & Mathematics ➔ Mathematics
(1/4)x + (3/2)x = 7
To get rid of the fractions, multiply everything by the LCD (least common denominator). In this case, the LCD is 4.
4(1/4)x + 4(3/2)x = 4(7)
x + 6x = 28
7x = 28
x = 4
2007-10-12 06:35:15 · answer #1 · answered by Mathematica 7 · 1⤊ 0⤋
x=4. combine like terms and then solve for x. 1/4 + 3/2 = 7/4.
7/4x=7 which is the same as x=(7)(4/7). the 7 cancels out leaving you with x=4. Check your work by plugging in 4 for x in the original equation.
2007-10-12 13:30:12 · answer #2 · answered by Gabi ng Lagim 7 · 1⤊ 0⤋
Multiply both sides by 4x
1+6=28x
28x=7
x=7/28=1/4
2007-10-12 13:52:24 · answer #3 · answered by cidyah 7 · 0⤊ 0⤋
1/4x + 3/2x = 7 combine like terms by adding the values
First get a common denominator
3/12x + 18/12x = 7 add the terms in front of the x's
21/12x = 7 divide each side by 21/12
x = 7
2007-10-12 13:36:37 · answer #4 · answered by regisivjosh7 3 · 0⤊ 0⤋
1/4x+3/2x=7/4x. Multiply both sides by 4/7 and you get x=4.
2007-10-12 13:37:10 · answer #5 · answered by MJ 2 · 1⤊ 0⤋
Assume question is:-
(1/4) x + (3/2) x = 7
x + 6x = 28
7x = 28
x = 4
You will receive conflicting answers because of lack of brackets. Those who answer then interpret the question in different ways , hence the different answers.
2007-10-16 11:16:26 · answer #6 · answered by Como 7 · 0⤊ 0⤋
1/4x + 3/2x = 7
1/4x + 6/4x = 7
7/4x = 7
x = 7 * (4/7)
x = 4
2007-10-12 13:34:42 · answer #7 · answered by TheOtterRules 2 · 1⤊ 0⤋