2007-11-04 11:51:34 · 10 answers · asked by madison n 1 in Science & Mathematics ➔ Mathematics
7x - 4 = 20 + 3x
Solve for x
7x - 4 = 20 + 3x
7x - 3x = 20 + 4
4x = 24
x = 6
2007-11-04 11:54:34 · answer #1 · answered by -eR!c- 2 · 1⤊ 0⤋
EQUATION: 7x-4=20+3x
First, Transpose 3x to the other side and -4 to the other side
7x-3x =20+4
Equate.
4x = 24
Divide both sides by 4 to solve for the value of x
x=6
2007-11-04 12:01:48 · answer #2 · answered by William99929 2 · 0⤊ 0⤋
Solve for x
7x-4 = 20+3x..........1)Add 4 to both sides
7x = 24+3x..........2)Subtract 3x from both sides
4x = 24 ...........3) Divide both sides by 4
x = 6
2007-11-04 12:30:08 · answer #3 · answered by SYSV1RUS 3 · 0⤊ 0⤋
7x-4=20+3x
7x-3x = 20 +4
4x=24
x=6
2007-11-04 11:55:16 · answer #4 · answered by ironduke8159 7 · 0⤊ 0⤋
Subtract 3x from the right side and you'll get 4x-4=20 and then add 4 to 20, and you'll get 4x=24 and divide 4 from both sides and x=6.
2007-11-04 11:55:11 · answer #5 · answered by crazyanimeluva 1 · 0⤊ 0⤋
7x-4=20+3x
4x = 24 {combine like terms}
x = 6 {divide by 4 to find what x is}
I hope this helps.
2007-11-04 11:56:32 · answer #6 · answered by pawdog530 3 · 0⤊ 0⤋
7x-4=20+3x
-3x -3x (subtract 3x from both sides, positive 3x
______________ and negative 3x cancel out)
4x-4=20 (Add 4 to both sides, negative 4 and
+4 +4 positive 4 canel out)
______________
4x/4 = 24/4 (Divide 4x by 4, and divide 24 by 4)
x=6 ( x=6)
2007-11-04 12:07:33 · answer #7 · answered by star 4 · 0⤊ 0⤋
7x-4=20+3x
7x-3x-4=20+3x-3x
4x-4=20
4x-4+4=20+4
4x=24
x=6
2007-11-04 11:58:10 · answer #8 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
x equals 6 because
7(6)-4= 20 + 3(6)
42-4=38
20 +18 = 38
and it checks so it def 6
2007-11-04 11:54:44 · answer #9 · answered by Linda Lou 5 · 0⤊ 1⤋
eric is correct
2007-11-04 11:56:16 · answer #10 · answered by tmahurin22 3 · 0⤊ 0⤋