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3\left(5-2a\right)\times 4=2\left(8-a\right)
Multiply both sides of the equation by 12, the least common multiple of 4,3,2.
12\left(5-2a\right)=2\left(8-a\right)
Multiply 3 and 4 to get 12.
60-24a=2\left(8-a\right)
Use the distributive property to multiply 12 by 5-2a.
60-24a=16-2a
Use the distributive property to multiply 2 by 8-a.
60-24a+2a=16
Add 2a to both sides.
60-22a=16
Combine -24a and 2a to get -22a.
-22a=16-60
Subtract 60 from both sides.
-22a=-44
Subtract 60 from 16 to get -44.
a=\frac{-44}{-22}
Divide both sides by -22.
a=2
Divide -44 by -22 to get 2.