Answer:
Hello There. ☆~\---___`:•€`___---/~☆ The correct answer is C. Both (1,3) and (-2,-4).
To check whether (-2,-4) is a solution of the equation let's substitute x= -2 and y= -4 into the equation:
-7x+3y=2
-7*(-2)+3*(-4)=2
14-12=2
2=2
Do the same thing with (1,3)
-7x + 3y = 2
-7 * 1 + 3 * 3 = 2
-7 + 9 = 2
2 = 2.
Hope It Helps!~ ♡
ItsNobody~ ☆
Answer:
night.....
Step-by-step explanation:
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Answer:
y = -2x - 1
Step-by-step explanation:
y = mx + b
slope = m
y = -2x + b
5 = -2x * -3 + b
5 = 6 + b
-1 = b
y = -2x - 1
Let me know if I'm wrong :)
Answer:
Step-by-step explanation:
x = small barrettes
y = large barrettes
13x + 11y = 142.......multiply by -1
13x + 12y = 149
-----------------------
-13x - 11y = -142 (result of multiplying by -1)
13x + 12y = 149
------------------------add
y = 7..........large barrettes used 7 yards
13x + 11y = 142
13x + 11(7) = 142
13x + 77 = 142
13x = 142 - 77
13x = 65
x = 65/13
x = 5........small barrettes used 5 yards
