Use f(x)=-2x+5 to find x when f(x)=11

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16-04-2021
Mathematics

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Use f(x)=-2x+5 to find x when f(x)=11

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amirasouikni amirasouikni · Answer 1 · 2021-04-16T07:15:48+02:00

amirasouikni amirasouikni

16-04-2021

When it asks this question, ultimately you want to plug 11 into x because its f(x). 11=-2+5.

Then you subtract 5 on both sides because of the opposite of addition is subtraction.

6=-2x

now divide on both sides

x=-3

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