dontcareanyonemo
11.02.2021 •
Mathematics
Solve the system by graphing. It is REQUIRED to check your solution. Show work for this problem on your work page.
y = x -1
y = -2x -4
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Ответ:
Let's solve for x.
y=x−1
Step 1: Flip the equation.
x−1=y
Step 2: Add 1 to both sides.
x−1+1=y+1
x=y+1
x=y+1
---------------------------------
Let's solve for x.
y=−2x−4
Step 1: Flip the equation.
−2x−4=y
Step 2: Add 4 to both sides.
−2x−4+4=y+4
−2x=y+4
Step 3: Divide both sides by -2.
−2x
−2
=
y+4
−2
x=
−1
2
y−2
x=
−1
2
y−2
Ответ: