Answer:
x = (c-2)/b
Step-by-step explanation:
5(c - bx) = 10
c - bx = 2
c - 2 = bx
(c - 2)/b = x
From what I learnt so far, there are 3 possible ways of finding whether ratios form a proportion
C=2b
d=c+7
b+c=57⇒b+2b=57⇒3b=57⇒ b=19, c=2*19=38, d=38+7=45
thats given
lets find if there is an x such that d-x=b+x=c⇔ 43-x=19+x=38
43-x=38⇒x=43-38=5
19+x=38⇒x=19
there is no single x (cant be both 5 and 19)
so, i think dan was incorrect.
Seed mix a is more expensive than b
Answer
-4y+5
Explanation
You add -2y and -2y which equals -4y, then you add 12 and -7 which equals 5, then just put them in order as they appear in the equation.