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OpenStudy (anonymous):
what is x when 3x+20=2x-10
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OpenStudy (saifoo.khan):
-30
OpenStudy (anonymous):
Subtract 2x + 20 from both sides.
OpenStudy (anonymous):
first we need to arrange it - bring all x to one side and numbers to another. so we get: 3x-2x=-10-20 as you know, when we bring numbers and x to another side we change signs-that is why we got this expression now we just solve it: x=-30
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