Solve for d
16d - (4 - 5d) = -67
2007-10-01 16:08:26 · 17 answers · asked by x10 2 in Science & Mathematics ➔ Mathematics
I know it's not that hard.
I just got lazy.
:p
2007-10-01 16:35:37 · update #1
Well, expand the brackets:
16d - 4 + 5d = -67
Collect like terms:
21d - 4 = -67
Add 4 to both sides to equate the equation:
21d = -63
Divide both sides by 21:
d = -3
2007-10-01 16:11:33 · answer #1 · answered by รզlεսռց ☆ 6 · 2⤊ 0⤋
16d - 4 + 5d = - 67
(when you see a minus sign in front of a bracket, change the sign of all the terms inside the bracket...so the 4 becomes a -4 and the -5d becomes a 5d)
21d= -67 +4
21d = -59
d= -59/21
2007-10-01 16:13:16 · answer #2 · answered by Miss M 2 · 0⤊ 0⤋
First, you would distribute the negative to what's in the parenthesis. Then, add like terms, and get the variable by itself and solve for the variable.
16d - (4 - 5d) = -67
16d - 4 + 5d = -67
21d - 4 = -67
21d = -63
d = -3
2007-10-01 16:21:05 · answer #3 · answered by jtp4455 2 · 1⤊ 0⤋
1) add 67 to both sides to get 67+16d-(4-5d)=0
2) add (4 - 5d) to both sides to get 67 + 16d = 4 - 5d
3) subtract 16d to -5d to get 67 = 4 -21d
4) subtract 67 by 4 to get 63 = -21d
5) divide -21 to get -63/21 = d
which is the same as -3
therefore, d = -3
yay
2007-10-01 16:19:01 · answer #4 · answered by Andrew 3 · 0⤊ 0⤋
distribute the negative. so then ull have 16d-4+5d= -67. add foru to 67. and combine the common terms 16d and 5d. ull get 21d=-63. d= -3
2007-10-01 16:12:11 · answer #5 · answered by Anonymous · 0⤊ 0⤋
d=17
2007-10-01 16:14:29 · answer #6 · answered by dontmesswithheather 2 · 0⤊ 0⤋
d = -3
2007-10-01 16:11:46 · answer #7 · answered by Anonymous · 0⤊ 0⤋
16d - (4 - 5d) = -67
16d - 4 + 5d = -67
21d = -63
d = -3
2007-10-01 16:12:39 · answer #8 · answered by ♥♪♫♥♫♪♥ 4 · 0⤊ 0⤋
1) 16d-4+5d = -67
2) 21d - 4= -67
3) 21d = -63
4) d= -3
2007-10-01 16:12:06 · answer #9 · answered by Sariel V 2 · 0⤊ 0⤋
16d-4+5d=-67
21d=-67-4
21d=-63
d=-3
2007-10-01 16:23:45 · answer #10 · answered by krishnandram 1 · 0⤊ 0⤋