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3(2a-1) - 2(5a+1)=4(3a+4)

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Answer to a math question 3(2a-1) - 2(5a+1)=4(3a+4)

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Expand $3(2a-1)-2(5a+1):{\quad}-4a-5$

$-4a-5=12a+16$

Move $ 5 $to the right side

$-4a=12a+21$

Move $ 12a $to the left side

$-16a=21$

Divide both sides by $-16$

$a=-\frac{21}{16}$

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