2 z - 4 (9-3z) = 62
whats z?
And
-34 = 3d+8/3
Whats d?
Please help, due next hour!
xxxxxx
2007-12-04 02:20:51 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Question 1
2z - 36 + 12z = 62
14z = 98
z = 7
Question 2
- 102 = 9d + 8
9d = - 110
d = - 110 / 9
2007-12-05 05:54:14 · answer #1 · answered by Como 7 · 1⤊ 0⤋
D=12
z=13
2007-12-04 02:32:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋
2z-36+12z=62
14z= 62+36
14z=98
z=7
2. xing and dividing by 3
-102 =9d+8
-110 =9d
d=-110/9 = -12 2/9
2007-12-04 02:32:26 · answer #3 · answered by surmy 2 · 0⤊ 0⤋
2z - 4(9 - 3z) = 62....Expand:
2z - 36 + 12z = 62, so
14z = 98, so
z = 98/14, so
z = 7.
-34 = 3d + 8/3.........multiply thro` by 3:
-102 = 9d + 8, so
-110 = 9d, so
d = -110/9.
Hope this helps, Twiggy.
2007-12-04 02:28:00 · answer #4 · answered by Twiggy 7 · 0⤊ 0⤋
2z - 4 (9-3z) = sixty two 2z - 36 + 12z = sixty two {distribute the -4} 14z - 36 = sixty two {combine like words} 14z = ninety 8 {upload 36 to the two sides} z = 7 {divide the two sides by using 14} - 34 = 3-D + 8/3 - 102 = 9d + 8 {multiply the two sides by using 3} - one hundred ten = 9d {subtract 8 from the two sides} - one hundred ten/9 = d in keeping with probability you meant to jot down - 34 = (3-D + 8)/3 - 102 = 3-D + 8 - one hundred ten = 3-D - one hundred ten/3 = d
2016-10-10 05:33:53 · answer #5 · answered by ? 3 · 0⤊ 0⤋
2z - 36 + 12z = 62
-> 14z = 98 -> z = 7
-34 - (8/3) = 3d -> -(102/3) - (8/3) = 3d
-> (-110/3) = 3d
d = -110
2007-12-04 02:28:55 · answer #6 · answered by J 2 · 0⤊ 1⤋
Multiply it out:
2z-36+12z=62
14z=98
z=7
-------------------------------
Multiply whole equation by 3:
-102=9d+8
-110=9d
d=-110/9
2007-12-04 02:34:46 · answer #7 · answered by kev_guy 2 · 0⤊ 0⤋
Naughty naughty. You should do you homework the night before istead of watching TV.
Just use +,-,/, and* to get variables on the left and numbers on the right to solve the equations.
2007-12-04 02:28:34 · answer #8 · answered by baja_tom 4 · 0⤊ 1⤋
z=-2.6
d=-34/8
2007-12-04 02:29:27 · answer #9 · answered by Andy 2 · 0⤊ 1⤋
do your own homework. you are only cheating yourself out of an education.
2007-12-04 02:29:00 · answer #10 · answered by Las Julius 3 · 0⤊ 1⤋