<span> x − 2y = −1 => x = 2y -1
2x + y = −12
2(2y - 1) + y = -12
4y - 2 + y = -12
5y = -10
y = -2
x = 2</span>·(-2) - 1
x = -4 - 1
x = -5
Answer <span>D (-5,-2)</span>
Answer:
Substitution
Step-by-step explanation:
tbh i havent checked so sorry if its wrong
Answer:
yes, you got it correct
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
the sum of the express of the summation of the notation
