2007-11-12 18:13:45 · 7 answers · asked by Monica H 1 in Science & Mathematics ➔ Mathematics
5x = 20
x = 4
2007-11-13 04:49:38 · answer #1 · answered by Como 7 · 2⤊ 2⤋
4x+x=20
5x= 20
x= 20/5=4
2007-11-13 02:22:32 · answer #2 · answered by Sean Lawlor 5 · 0⤊ 1⤋
The answer is 4.
x=20-4x
4 = 20 - 4 x 4
4 = 20 - 16
4 = 4
2007-11-13 02:24:07 · answer #3 · answered by nesmith52 5 · 1⤊ 2⤋
x = 20 - 4x
4x + x = 20
5x = 20
x = 4
Check to see if it is right by replacing x with 4
4 = 20 - (4*4)
4 = 20 - 16
4 = 4
Therefore x = 4
2007-11-13 02:30:56 · answer #4 · answered by Patman 2 · 0⤊ 2⤋
x= 20-4x
x + 4x= 20 (by combining the like terms)
5x= 20
so x = 20/5 i.e. 4.
2007-11-13 05:11:43 · answer #5 · answered by Pauli :) 6 · 0⤊ 2⤋
x=20-4x
x+4x=20 [taking 4x to other side]
5x=20
x=20/5
x=4
HOPE THAT HELPS!!!
2007-11-13 02:29:45 · answer #6 · answered by mastermind 2 · 0⤊ 2⤋
x=20-4x
-20=x-4x
-20=-3x
x=-20/3
2007-11-13 02:21:31 · answer #7 · answered by Anthropomorphic 2 · 0⤊ 2⤋