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OpenStudy (anonymous):
-[-(3x-5)+x] for x = -9 step by step please thanks
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OpenStudy (chaise):
-[-(3x-5)+x] Simple substitute in your value of x=-9 -[-(3x-5)+-9] = -[-3x+5-9] = -[-3x-4] = [3x+4] When you see a negative outside a bracket assume you are multiplying every term in the bracket by -1.
OpenStudy (anonymous):
well what does it equal lol
OpenStudy (chaise):
3x+4. Sorry. Ignore my square brackets.
OpenStudy (anonymous):
Okay thank you
OpenStudy (anonymous):
but wait you didnt substitute the 3x ?
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OpenStudy (anonymous):
are you there lol
OpenStudy (chaise):
Oh, MY BAD. I'm sorry. = -[-((3x-9)-5)-9] = -[-((-27)-5)-9] = -[-(-32)] = -32
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