Solve for a
a=4
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5a+1=7\times 3
Multiply both sides by 3.
5a+1=21
Multiply 7 and 3 to get 21.
5a=21-1
Subtract 1 from both sides.
5a=20
Subtract 1 from 21 to get 20.
a=\frac{20}{5}
Divide both sides by 5.
a=4
Divide 20 by 5 to get 4.
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Limits
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