1/4 (z - 4) = -3/4 (z + 2)
I have been stuck on this darn problem for (10) minutes and I really need to move on to my History homework.
Thanks in advance for your help!
2006-09-20 12:56:14 · 8 answers · asked by King Math 1 in Science & Mathematics ➔ Mathematics
multiply both sides by 4
z - 4 = -3 (z+2)
distribute the right side
z - 4 = -3z - 6
add 3z to both sides
4z - 4 = -6
add 4 to both sides
4z = -2
divide by 4
z = -1/2
2006-09-20 13:03:37 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Z = -1
2006-09-20 20:09:25 · answer #2 · answered by trimmysweb 1 · 0⤊ 0⤋
You could multiply both sides by 4 to cancel the fractions:
4(1/4)(z-4) = z-4; 4(-3/4)(z+2) = -3(z+2) = -3z - 6
So z - 4 = -3z - 6
Add 3z and 4 to both sides to get 4z = -2
Divide both by 4 to get z = -1/2
2006-09-20 20:05:07 · answer #3 · answered by hayharbr 7 · 0⤊ 0⤋
1/4 (z - 4) = -3/4 (z + 2)
1/4 z - 1/4 (4) = -3/4 z - 3/4 (2)
1/4 z - 1 = -3/4 z - 3/2
1/4 z + 3/4 z = 1 - 3/2
z = -1/2
2006-09-20 20:05:54 · answer #4 · answered by actuator 5 · 0⤊ 0⤋
1/4 (z - 4) = -3/4 (z + 2)
1/4z - [(1/4 * 4)] = -3/4z + [(-3/4 * 2)]
1/4z - 4/4 = -3/4z + (-6/4)
1/4z - -4/4 = -3/4z -6/4
1/4z + 3/4z = -6/4 + 4/4
4/4z = -2/4
z = -1/2
2006-09-20 20:02:26 · answer #5 · answered by JennyAnn 4 · 0⤊ 0⤋
1/4(z-4)= -3/4(z+2)
1(z-4)/4 =-3(z+2)/4
z-4=-3z-6
6-4=-3z-z
2=-4z
2/4=-z
1/2=-z
z= -1/2
2006-09-20 20:08:40 · answer #6 · answered by THE CAT 2 · 0⤊ 0⤋
.25z-1 = -.75z+-1.5
-1=-z+-1.5
1.5=z
2006-09-20 20:04:47 · answer #7 · answered by Anonymous · 0⤊ 0⤋
yay they're right
2006-09-20 22:43:06 · answer #8 · answered by Timothy B 2 · 0⤊ 0⤋