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(pls help!!) solve for x

(pls help!!) solve for x-example-1

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2 votes

Answer:

x=9

Explanation:

Since both expressions are formed from two parallel line with a bisector, you know they would be equal to each other.

We first start with the equation

13x+3=12x+12

Now we want x only on one side, so we subtract 12x from both sides

13x-12x+3=12x-12x+12

Now we simplify

x+3=12

Now we want to isolate x, so we subtract 3.

x+3-3=12-3

Finally we simplify

x=9

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