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Christian Sawayn β
lenpollock β
5x + x - 9x .
In this case all terms are alike and so can be combined.
5x + x = 6x
Then 6x - 9x = -3x The answer.
5x + (x-9x) = 5x + (-8x) = -3x.
x=1.99999999910x=19.999999999x=10x - x9x = 19.999999999 - 1.9999999999x= 18x=18/9x=2