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2 votes
4x + -2 = 2x +4

can someone show me how to do this?? showing ALL the work then checking the answer but substituting th value back into the original equation??? thanks in advance!!”

User Wizz
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2 Answers

5 votes

Answer:X=3

Explanation:

4x + (-2) = 2x + 4 -- First you need to isolate the x by adding 2 to both sides and subtracting 2x from both sides.

4x + (-2) = 2x + 4

-2x +2 -2x +2

2x + 0 = 0 + 6 or 2x = 6 -- Now you divide both sides by 2

/2 /2

1x = 3 or x=3 -- This is your answer. Now plug 3 back in to check if you are correct.

4(3) + (-2) = 2(3) + 4

12 + (-2) = 6 + 4

10 = 10 -- So, x=3 is correct. Hope I explained it ok for you?

User Leeanne
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8.2k points
5 votes
you do 4x — 2x which equals 2x then you do -2 —4 which equals -6 then you have 2x=-6. so you divide -6/2 and your answer is X=-3. Oh you check by replacing the Xs with -3 and see if the equation is true.
User Sebastian Norr
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7.5k points