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If 3a-9+6 , what is the value of 4a-1?
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rewrite
check the question again ...
sorry the + is suppose to be =
you mean : 3a-9=6
yes
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so after that add 9 on both sides: 3a-9+9=6+9
becomes 3a-18=15
no.no. -9+9 = 0
they have diff. signs
oh yea, i didnt notice, so really is becomes 3a=15?
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yes ... and then divide both sides by 3
becomes 5a
i ment a= 5
\[\large{\frac{3a}{3}=\frac{15}{3}}\] \[\large{\frac{\cancel{3}a}{\cancel{3}}=\frac{\cancel{15}^5}{\cancel{3}^1}}\]
a= 5 right
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now put this value in 4a-1 4(5)-1
what r u getting?
20-1=19?
very good ..
that is ur answer
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and also: \[\huge{\mathbb{Welcome}\textbf{To}\mathbb{Openstudy}}\]
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