AB = 8x -6
AM=3x+3
MB = ?
bc. we know that M is the midpoint of line AB so this mean that AM + MB = AB
and AB/2 = AM
do you can solve ot now ?
OpenStudy (mariany_):
I'm confused like would 8x be A and B would be 6?
jhonyy9 (jhonyy9):
AB = 8x-6 = 2(4x-3)
AB/2 = AM
2(4x-3)/2 = AM
4x-3 = AM
but we know that AM =
jhonyy9 (jhonyy9):
do you can rewrite these all please ?
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OpenStudy (mariany_):
im so confused
OpenStudy (mariany_):
ill give you medal but idk what it is
jhonyy9 (jhonyy9):
so you need knowing that AB is a segment ,is a line and the point M is the midpoint of this line ,of this segment
ok. ?
OpenStudy (mariany_):
is it 5x-9?
OpenStudy (mariany_):
hello?
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OpenStudy (matthew120):
hmmm
OpenStudy (matthew120):
what grade r u in
OpenStudy (mariany_):
10th
OpenStudy (matthew120):
7th here
OpenStudy (matthew120):
brb
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OpenStudy (matthew120):
ok
OpenStudy (matthew120):
i dunno bro
OpenStudy (matthew120):
@MissSmartiez @domebotnos
OpenStudy (mariany_):
i already know its 21 now..
OpenStudy (mariany_):
thanks though
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jhonyy9 (jhonyy9):
so how i wrote it above
AB = 8x-6 = 2(4x-3)
AB/2 = AM
2(4x-3)/2 = AM
4x-3 = AM
but we know that AM = 3x+3
in this case there are 3x+3 = 4x -3
solve it for x and will get x = 6 so in this case than we know that x=6 than AB = 8*6-6 so
AB = 48-6 so AB = 42
jhonyy9 (jhonyy9):
but we need to know the length of MB what is the half part of AB so the length of MB is 42/2 = 21
hope helped you and hope so much that is understandably sure right easy