Solved

Solve the System by the Substitution Method {x+y=−7x−y=15\left\{ \begin{array} { l } x + y = - 7 \\x - y = 15\end{array} \right.

Question 65

Multiple Choice

Solve the system by the substitution method.
- {x+y=−7x−y=15\left\{ \begin{array} { l } x + y = - 7 \\x - y = 15\end{array} \right.


A) ∅\varnothing
B) {(4,−11) }\{ ( 4 , - 11 ) \}
C) {(x,y) ∣x+y=−7}\{ ( x , y ) \mid x + y = - 7 \}
D) {(4,11) }\{ ( 4,11 ) \}

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q60: Solve the problem.<br>-Given the cost function,

Q61: Solve the problem.<br>-Andrea is having her yard

Q62: Solve the system by the substitution

Q63: The figure shows the graphs of the

Q64: Solve the problem.<br>-Find the values of

Q66: Solve the system by graphing.<br>- <span

Q67: Solve the system by the addition

Q68: Solve the system. If there is

Q69: Solve the system by the substitution

Q70: Solve the system by any method.<br>-