Step-by-step explanation:
x+2y=-4
2x+3y=1
The difference between this two equations is x+y so:
x+y
=1-(-4)
=1+4
=5
I'm not sure what the question is asking to find, but I have already helped you find the value of x+y, good luck with the rest I guess :))
Answer:
facts
Step-by-step explanation:
guacamole ninja penis
Answer:
the answer is 
or 
Step-by-step explanation:
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
mind you that it has two complex roots, or imaginary values.
Answer:
x = -8
Step-by-step explanation:
y = 3x + 14
2x - 3y = -14
So, what is the substitution? Y of course, this is because y is equal to 3x + 14.
2x - 3 (3x + 14) = -14
Multiply 3 with the numbers in the parentheses.
2x - 9x + 42 = -14
So you maybe be wondering why it is a negative 7 instead of subtracting 9 with 2. Using PEMDAS, we always read from left to right. So it is basically 2 -9 and you get -7.
-7x + 42 = -14
Then subtract 42 from both sides.
-7x + 42 - 42 = -14 - 42
Simplify
-7x = -56
Divide 7 by both sides.
-7x / 7 = -56 / 7
x = -8
And you might ask, why we get x instead afterwards. This is because both -7 and 7 cancel each other out leaving us with x.
