7•7+3(4•4+3+2) what is the answer to this?????
2 answers:
You might be interested in
Answer:
b) (5, -3)
Step-by-step explanation:
The given equations are;
I prefer using substitution because of the first equation.
Put equation (1) into equation (2) to obtain;
We expand the parenthesis to obtain;
Group similar terms to get;
Simplify
Divide through by 5;
Put into equation (1) to get;
The solution is (5,-3).
The correct answer is B