Abbe Eigel 5-6

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  • Hello! Today I'm going to teach you how to do a two step equation.
  • First we have to distribute the 2 outside of the parentheses to the other two numbers inside the parentheses.
  • Today the equation we will be solving is 2(2x-4)=10
  • After distributing our next step is to use the inverse step (inverse is the opposite) ex: addition's inverse is subtraction.
  • So after distributing our equation is 4x-8=10 since 2*2x is 4x and 2*4 is 8.
  • So now we take the equation 4x-8=10 and add 8 to both the -8 and 10. So now our equation is 4x=18. (this happens because the -8 and +8 cancel each other out so you're left with just the 4x.)
  • By adding 8 to both the -8 and 10 we used the equality property of addition because we added 8 to both sides.
  • By adding the 8 we also used the inverse step because the inverse of subtraction is addition.
  • Now we take the equation 4x=18 and divide each side by 4 so the solution is X=4.5 because 4x divided by 4 is X and 18 divided by 4 is 4.5.
  • We also used the equality property of division because we divided both sides by 4.
  • We divided by 4 to isolate the variable.
  • Now we've found out the solution is X=4.5.
  • And that's all there is to it. We have solved the equation!
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