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  • 02-03-2017
  • Mathematics
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how do I solve 5(4x -5) = 155

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Аноним Аноним
  • 02-03-2017
  5*(4*x-5)-(155)=0 
5 • (4x - 5) - 155 = 0
  Pull out like factors :
20x - 180  =   20 • (x - 9) 
20 • (x - 9) = 0  Solve :    20   =  0
Solve  :    x-9 = 0 
 Add  9  to both sides of the equation : 
 
                     x = 9 
hope that helps!!
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