Answer:
x = 1.19258 and x = −4.19258
Step-by-step explanation:
The given equation is :

Keep x terms on the left and move the constant to the right side by adding it on both sides.

Take half of the x term and square it.

then add the result to both sides

So,
x = 1.19258 and x = −4.19258
Hence, this is the required solution.
There are 25 $10 bills and 11 $20 bills.
Step-by-step explanation:
Given,
Worth of proceeds from garage = $470
Let,
x be the number of $10 bills
y be the number of $20 bills.
According to given situation;
10x+20y=470 Eqn 1
x = y+14 Eqn 2
Putting value of x from Eqn 2 in Eqn 1

Dividing both sides by 30

Putting y=11 in Eqn 2

There are 25 $10 bills and 11 $20 bills.
Keywords: linear equation, substitution method
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Answer:
use a calculator
Step-by-step explanation:
hope this helps
You have 9n and -7 in total so the answer is 9n-7. You add up all the numbers and then add up the numbers with n attached to them
Answer:
I think A and C
Step-by-step explanation: