Answer:
(-7,5)
Step-by-step explanation:
Dont insult yourself like that. Math is always hard for the first time. Here how i like to solve systems of equations.
Lets start with 2x+y=-9. Lets get y alone so we can input it into the first equation.
2x+y=-9
Subtract 2x from both sides
2x-2x+y=-9-2x
Simplify
y=-2x-9
Now that we have something equal to y, we can input our value of y into 2x+3y=1 to solve for x.
2x+3y=1
input y=-2x-9
2x+3(-2x-9)=1
Multiply the 3 out.
2x-6x-27=1
Combine the x.
-4x-27=1
Add 27 to both sides
-4x-27+27=1+27
Add
-4x=28
Divide both sides by -4
-4x/-4=28/-4
Divide
x= -7
Now that we have a numerical value for x, we can input it into the second equation to find y.
2x+y=-9
Input x=-7
2(-7)+y=-9
Multiply
-14+y=-9
Add 14 to both sides
-14+14+y=-9+14
Add
y=5
Your answer is y=5, x=-7. The form you need it (-7,5).
