khemtimsina khemtimsina

30-10-2014
Mathematics

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3x-7= 5x-19 justify the each step

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malloryR malloryR

30-10-2014

1. add a negative 5x to both sides
2. add seven to both sides
3. there is your answer.

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30-10-2014

3x-7=5x-19
-3x -3x
-7=2x-19
19 +19
12=2x
/2 /2
6=x

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