the answer is a
7d - 2 = 12, solve for d:7d = 12 + 2, so7d = 14.d = 14 / 7, sod = 2
a+b+c+d+e = 30 (i) c+e = 14 (ii) d+b = 1 (iii) a = 2b-1 (iv) a+c = 10 (v) By (i)-(ii)-(iii): a = 15 then, by (iv): b = 8 and by (v): c = -5 Also, b = 8 so by (iii): d = -7 and then by (i), e = 19
6+6=12, easy :D
d = -3.5
12=n in a d
d = a - 2bc
A plus b plus c equals d. A is the largest answer b is the smallest answer and d is less than 6?''
what is d over 12 plus 7 times d over 12 equal
P = Pieces/PartsD = Dozen
If 16 - 7d = -3 d + 2, collecting like terms with "d" on the left side yields -4d = -14, or d = 14/4 = 7/2.
z remains undefined.
12 dozens in a carton?
If: a = b+c+d Then: c = a-b-d
There are four unknown variables and only three linear equations so there is not a unique solution. All you can do is to rearrange the four variables so that three of them can be expressed in terms of the fourth. For example: In terms of c, a = 6 - c/2 b = a - c = 6 - 3c/2 d = c
x = (d-a)/(a-c)
Expressed algebraically, d + 7d = 8d.
d = 2
6.2 + .79 = D means D = 6.99