To simplify the expression (4d - 3) + (12d + 4), we need to combine like terms.
In the first set of parentheses, we have 4d - 3.
And in the second set of parentheses, we have 12d + 4.
To combine like terms, we add or subtract the coefficients of similar variables.
4d + 12d = 16d
-3 + 4 = 1
Therefore, the simplified expression is: 16d + 1.
dd: (4d−3)+(12d+4) .
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