SOLUTION: Please help me solve this: 7r-(2r+8)=32
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Question 13354
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Please help me solve this: 7r-(2r+8)=32
Found 2 solutions by
smik, JimMarshall
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Answer by
smik(40)
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You factor everything out. As there is a negative (or as some would say - a subtraction sign) in front of (2r+8) you have to multiply everything insided the brackets by -1, which gives us:
7r-2r-8=32
Then you add the like terms:
5r-8=32
You add 8 to each side:
5r=40
And you divide each side by 5:
r=8
Answer by
JimMarshall(82)
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7r - ( 2r + 8 ) = 32
==> 7r - 2r - 8 = 32
==> 5r = 32 + 8
==> 5r = 40
== r = 8
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