Bisects means to separate in equal parts, meaning each part is equal. This means the equations on each side of the line are equal. Once you equate them, you combine like terms finding your answer.
1) 2x+ 3=x+7
-x -x
x+3 = 7
-3 -3
Answer: x=4 (do this for the others)
2) x=7/2
3) x=5/2
Opposite of a negative is the same number as a positive
Hello! x is 45 degrees because you subtract 75 and 30 to get 45 and it looks very much like a 45 degree angle. brainlist would be much appreciated i hope your day is going great because you are great :)