a) The solution is x = -9.
b) The solution is x = 15.
<u>Step-by-step explanation:</u>
a) The given equation is 3(x+1)=2(x-3).
To solve this equation, distributive property is used.
<u>The Distributive property :</u>
It is done by multiplying the number outside the bracket with each terms present inside the bracket.
Now, the first step is to multiply 3 with each terms in (x+1) and multiply 2 with each terms in (x-3).
⇒ 3x+3 = 2x-6
Bring x terms on one side and constants on other side,
⇒ 3x-2x = -6-3
⇒ x = -9
b) The given equation is 2(5x-6)=3(3x+1).
To solve this equation,distributive property is used.
Now the first step is to multiply 2 with each terms of (5x-6) and 3 with each terms of (3x+1).
⇒ 10x-12 = 9x+3
Bring x terms on one side and constants on other side,
⇒ 10x-9x = 3+12
⇒ x = 15
Answer:
B
11 dollars
Step-by-step explanation:
7x+13 is the sum of the two order
you know that one order is 3x+5, so if you subtract it from the total you get the other order
7x+13-(3x+5) =7x+13-3x-5 = 4x+8
if he spent 90 dollars in total then we can say that
7x+13 = 90
7x=77
x=11
11 dollars per box
Answer:
You are asking a question that cannot be solved by anyone outside of your school.
Step-by-step explanation:
What information is below?
Answer:
Step-by-step explanation:
According to the First Law of Thermodynamics, the heat received by the metal cylinder is equal to the change in the internal energy. That is:
The specific heat is clear in the previous expression and finally computed:
The given equation is
y = x
→
reciprocating both sides, we get
→ ............(1)
→ Here x and y are Directly proportional to each other.
which means ,
→ x = k y , where k is constant of proportionality.
Or , = k ............................(2)
Equating (1) and (2),
k =