16 = \frac { 1 } { 2 } ( a + 4 + ( - 3 )
Solve for a
a=31
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16\times 2=a+4-3
Multiply both sides by 2, the reciprocal of \frac{1}{2}.
32=a+4-3
Multiply 16 and 2 to get 32.
32=a+1
Subtract 3 from 4 to get 1.
a+1=32
Swap sides so that all variable terms are on the left hand side.
a=32-1
Subtract 1 from both sides.
a=31
Subtract 1 from 32 to get 31.
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