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Solve the equation 4a - 7 = 4(a - 2) + 1

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kjkmills | Student | eNotes Newbie

Posted September 21, 2012 at 4:55 AM via web

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Solve the equation 4a - 7 = 4(a - 2) + 1

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted September 21, 2012 at 5:17 AM (Answer #1)

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The equation 4a - 7 = 4(a - 2) + 1 has to be solved.

4a - 7 = 4(a - 2) + 1

=> 4a - 7 = 4a - 8 + 1

=> 4a - 7 = 4a - 7

=> -7 = -7

This is true for any value of a.

The equation 4a - 7 = 4(a - 2) + 1 is true no matter what value is given to a.

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salonigaba | Student, Grade 11 | Salutatorian

Posted September 21, 2012 at 6:43 AM (Answer #2)

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4a - 7 = 4(a - 2) + 1

 

4a=4a-8+1+7

4a-7=4a-7

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rescripting | College Teacher | eNotes Newbie

Posted September 21, 2012 at 7:25 AM (Answer #3)

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4a-7=4(a-2)+1

Open the bracket

4a-7=4a-8+1

Collect the like terms

4a-4a=-8+1+7

O=0

Ans=0

 

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sarahokoth | Student, Grade 9 | Honors

Posted September 21, 2012 at 7:50 AM (Answer #4)

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4a-7=4{a-2}+1

4a-7=4a-8+1

4a-4a=-8+7+1

0=0

hence,ans=0

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atyourservice | TA , Grade 10 | Valedictorian

Posted February 23, 2014 at 3:33 AM (Answer #5)

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4a - 7 = 4(a - 2) + 1  the first step is to distribute the 4

4a-7=4a-8+1    

4a-7=4a-7  now combine the terms by taking away and adding

4a-4a=7-7  0=0

so the answer is 0 

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Jyotsana | TA , Grade 10 | Valedictorian

Posted February 23, 2014 at 3:56 AM (Answer #6)

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4a-7=4(a-2)+1

4a-7=4a-8+1

4a-7=4a-7

4a-7+4a=4a-7-4a

-7=-7

-7+7=-7+7

0=0

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