4x+8y=20
-4x+8y=30
——————-
-4 and 4 cancel each other
16y=50
y= 25/8
4x+8y=20
4x+8(25/8)=20
4x+25=20
-25 -25
4x=-5
x= -5/4
(25/8 , -5/4)
Answer:
the perimeter to the nearest hundred is 256
Answer: x=t/r+s/r
How to:<u> Isolate the variable by dividing each side by factors that don't contain the variable.</u>
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Answer:
90 degrees counterclockwise or 270 degrees clockwise
Step-by-step explanation:
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