XDrakeH XDrakeH

20-04-2017
Mathematics

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2x+9 = 45 solve for x

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leejongsuk leejongsuk

20-04-2017

2x+9=45

Subtract 9 from both sides, so (9-9) and (45-9). You get 36.
Divide 36 by 2. You get 18. X=18

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20-04-2017

You move both the 9 and 2 away from the x by subtracting the 9 and dividing the 2
2x+9=45
-9 -9
2x=36
/2 /2
X=18

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