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Fritz
Mathematics
13 August, 11:49
What is 4x - (9-3x) = 8x-1
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Goblin
13 August, 12:19
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First you have to distribute the negative (=-1) with the numbers in the parentheses.
-1*9=-:
-1*-3x=3x
You now have:
4x-9+3x=8x-1
Now combine like terms:
4x+3x=7x
Now you have:
7x-9=8x-1
Now isolate that x:
7x-8x=-x
-1+9=8
You now have:
-x=8
Divide by - 1 and get:
x=-8
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