An equation chain uses the solution of one equation to find the solution to the next equation in the chain. The last equation is then used to check your solutions. Complete each of the following equation chains. 1) 5 + a = 12, so a =
ab = 14, so b =
16 ÷ b = c, so c =
14 – d = c, so d =
e ÷ d = 3, so e =
a + e = 25  CHECK

Arandom high school question but a hard one

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Acollege student takes out a $7500 loan from a bank. what will the balance of the loan be after one year(assuming the student has not made any payments yet) a. if bank charges 3.8% interest each year ?