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Mathematics
20 August, 12:39
16x-15-9x=13 how do you solve this step by step?
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Richard Watts
20 August, 13:00
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first you move the 15 to the 13 side like this:
16x-9x=13+15
If you move it, the sign always changes.
Then you do calculations.
16x-9x = (16-9) * x=7x
13+15=28
That means:
7x=28
Now you divide 7 from both sides:
x=4
So neatly, this is what it looks like:
16x-9x=13+15
7x=28
x=28/7
x=9
-Isb
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