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how do you solve the problem (3x+2) - 2(x+4)=7

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bbbbrrrrriiii... | Student, Grade 10 | eNotes Newbie

Posted August 8, 2012 at 10:30 PM via web

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how do you solve the problem

(3x+2) - 2(x+4)=7

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2 Answers | Add Yours

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Matthew Fonda | eNotes Employee

Posted August 8, 2012 at 11:27 PM (Answer #1)

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First start by simplifying the right hand side:

(3x + 2) - 2(x+4)

= 3x + 2 - 2x - 8 (multiply through second part by -2)

= x - 6 (combine like terms)

Now we just have to solve: x - 6 = 7

x = 13 (add 6 to each side)

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atyourservice | Student , Grade 10 | eNoter

Posted February 23, 2014 at 4:20 PM (Answer #2)

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`(3x+2) - 2(x+4)=7`

`3x+2-2x-8=7 ` combine like terms

`3x-2x+2-8=7`

x-6=7   now add 6 on both sides

 +6 +6

x=13

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