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laurenbrasgall laurenbrasgall
  • 02-09-2015
  • Mathematics
Answered

3-2(m+4)=15 how do I do this

Verified Answer :

Panoyin
Panoyin Panoyin
  • 02-09-2015

3 - 2(m + 4) = 15
3 - 2(m) - 2(4) = 15
       3 - 2m - 8 = 15
       3 - 8 - 2m = 15
           -5 - 2m = 15
         + 5           + 5
                -2m = 20
                  -2     -2
                   m = -10

Answer Link
yeet1 yeet1
  • 02-09-2015

Multipy -2(m+4) first
Then you have
3-2m-8=15
Subtact 3 and 8 from each side
-2m=4
Divide by -2 on both sides
m=-2
Then plug in -2 for m to check

Answer Link

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