SOLUTION
Write out the equation

To solve this system of equation, the aprropriate method will be substitution
Substitute the expression for y into the second equation for y, we have

Expand the paranthesis we have

Divide both sides by 4, we have

Since the value of x has been obtained, we substitute into the first equation

Therefore
x = -3, y= -4
Answer:
B
Explanation:
When multiplying exponents, you add them together.
Answer:
$6.75 each
Step-by-step explanation:
141.75 decided by the 21 calculators gets a grand total of $6.75 each
Answer:
distributive
Step-by-step explanation:
you are distributing 5(d+1) into 5d +5