Answer:
Correct choice is D
Step-by-step explanation:
Given the system of two equations:
Fro mthe first equation
Substitute into the second equation instead of y:
Note that then the second equation will take look
4w+6x+15y+4w+6x-7y
1 answer:
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First subtract 4 from both sides
then simplify
add -5 to both sides
since a variable shouldn't be negative the answer should be
(I prefer having the variable on the left side)
then simplify
add -5 to both sides
since a variable shouldn't be negative the answer should be
(I prefer having the variable on the left side)
This result is actually true for any exterior angle. The exterior angle of a triangle is equal to the sum of the two remote angles, and above is a short proof of it.