2006-10-22 14:00:17 · 5 answers · asked by wil46yang 2 in Education & Reference ➔ Homework Help
1) 2x-3=4 => 2x=7 => x=7/2=3.5
2) |w-3| = 0 => w-3=0 or -(w-3)=0, either way w=3
3) mx+3 = 4-nx => (m+n)x = 1 => x=1/(m+n)
4) 7x^2 = 14x means either x=0, or else 7x=14, so x=2.
2006-10-22 14:04:51 · answer #1 · answered by James L 5 · 0⤊ 0⤋
(1) 2x-3=4
2x=4+3
2x=7
x=7/2
x=3.5
(2) w-3=0
w=0+3
w=3
(3) mx+3=4-nx
mx=4-3-nx
mx=1-nx
x=1-nx /m
(4) 7x2=14x
14=14x
x=14/14
x=1
2006-10-22 14:20:01 · answer #2 · answered by savmic 1 · 0⤊ 0⤋
5(2x+3)-(x+3)=0 a million. Distribute - bear in mind a adverse before the parenthises is likewise dispensed. 10x + 15 - x - 3 = 0 2. combine like words 9x + 12 = 0 3. get the x on one area, the consistent on the different (subtract 12 from each and every area) 9x = -12 4. get the x by technique of itself by technique of dividing each and every area by technique of 9 x = -12/9 = -a million a million/3
2016-12-05 03:06:59 · answer #3 · answered by ? 4 · 0⤊ 0⤋
2x-3=4
2x=7
x=3.5
|w-3|=0
w=3
mx+3 = 4-nx
x = 1/(m+n)
7x2 = 14x
14/14 = x
x = 1
2006-10-22 14:07:47 · answer #4 · answered by DoctorScurvy 4 · 0⤊ 0⤋
1. x=22.5 2. w=3 3. ? sorry don't know that one
4. ? Be more specific
2006-10-22 14:05:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋