Use a calculator only on the last step Round answer to three

Use a calculator only on the last step. Round answer to three decimal places and use your calculator to check your answer. 457(36x - 99) = 34928x - 239)

Solution

457(36x - 99) = 34928x - 239

LHS = 457*36x - 99*457 = 16452x - 45243

now  16452x - 45243 = 34928x - 239

18476x = -45243 + 239

18476x = -45004

x = - 2.435 ( Solution)