anonymous
  • anonymous
solve for x -2(x + 3) = -2(x + 1) - 4
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Expand the expression on both sides.
anonymous
  • anonymous
Then, combine all the x's on one side, the constants on another side. You will be able to solve for x then.
MrNood
  • MrNood
@kaylalynn44 this is showing as posted 1 month ago - are you there online?

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anonymous
  • anonymous
yes idk y it says that. it must be a glitch
MrNood
  • MrNood
ok - on the left of the equagtion there is a term -2(x+3) Can you expand that? on the right side there is a term -2(x+1) can you expand that?
anonymous
  • anonymous
Do you mean use the distributive property?
MrNood
  • MrNood
yes
anonymous
  • anonymous
x -2x + 2 * 3 = -2x +1x - 4
MrNood
  • MrNood
a good try - but not quite correct when you distribute you have to remember to distribute the sign (i.e. the -) too
anonymous
  • anonymous
x -2x * 3 +2 = -2x * -2 + 1 -4 ??
MrNood
  • MrNood
whoa! take it steady -2(x+3) is the same as -2(x) + -2(3) try both sides again
anonymous
  • anonymous
x -2x + -2 * 3 = -2x + -2 * 1 -4
MrNood
  • MrNood
ok good that is correct - but it needs some brackets to make it clearer.... x -2x + -2 * 3 = -2x + -2 * 1 -4 x -2x + (-2 * 3) = -2x + (-2 * 1) -4 so write that out with the numbers completed
anonymous
  • anonymous
x -2x + (-2 * 3) = (-2 * 1) -4 x -2x + -6 = -2 -4
MrNood
  • MrNood
you missed out the -2x from the right side so we have x-2x-6 =-2x-6 ok? now add 2x to each side
anonymous
  • anonymous
x - 6 = -6?
anonymous
  • anonymous
then add 6 to both sides?
anonymous
  • anonymous
x = 0?
MrNood
  • MrNood
good now add 6 to each side...
anonymous
  • anonymous
x = 0
MrNood
  • MrNood
yes check that back in the original equation
MrNood
  • MrNood
the original (when x=0) becomes -6=-6 so x=0 is true solution
anonymous
  • anonymous
0 -2 (0 + 3) = -2 (0 +1) -4 -2 * 3 = -2 +1 * -4 -6 = 2 * -4 -6 = -6
anonymous
  • anonymous
Thank you so so so much. I think i understand it better. Thank you for your time!
MrNood
  • MrNood
yw

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