karlimarie2004 karlimarie2004
  • 10-10-2018
  • Mathematics
contestada

what is step by step for this problem -4(8+7x)=-10-6x

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cosmicctrl
cosmicctrl cosmicctrl
  • 10-10-2018
first factor out the brackets (multiply outside in)
(-4 × 8) + (-4 × 7x) = -10 - 6x
-32 - 28x = -10 - 6x
then bring all the numbers to one side and all the variables to the other
(REMEMBER: YOU MUST CHANGE THE SIGN WHEN BRINGING IT OVER THE EQUAL SIGN i.e. - becomes + and + becomes -)
-32 + 10 = - 6x + 28x
-22 = 22x
divide each side by 22
x = -1
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