19mjjenkins 19mjjenkins

04-09-2015
Mathematics

Answered

For what value of a is a(2x+3)=9x+15+x an identity?

Verified Answer :

konrad509 konrad509

04-09-2015

\(a(2x+3)=9x+15+x\\ 2ax+3a=10x+15\\\\ 2a=10 \wedge 3a=15\\ a=5 \wedge a=5\\\\ \boxed{a=5}\)

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