Seudónimo Seudónimo

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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