What is the solution to the system of equations y=2x+4 and y=x?
2 answers:
Answer:
x = -4
y = -4
Step-by-step explanation:
Since y = x, we can say:
x = 2x + 4
-x = 4
<u>x = -4</u>
And now we can substitute -4 in for x, in the equation y = x
<u>y = -4 </u>
Hope this helps!
Answer:
(-4,-4)
Step-by-step explanation:
set 2x + 4 and x equal to each other since they both equal 'y'
2x+4 = x
subtract 2x from each side to get:
4 = -x
divide by -1 so the variable becomes positive
-4 = x
if x=-4 and y=x then y=-4 also (you can check this by graphing each equation)
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