Intermediate Algebra, Chapter 5, 5.2, Section 5.2, Problem 60

Subtract: $(2d + 7) - (3d - 1)$


Multiply $-1$ by each term inside the parentheses.

$2d+7+1-3d $


Since $2d$ and $-3d$ are like terms, add $-3d$ to $2d$ to get $-d$.

$-d+7+1$


Add 1 to 7 to get 8.

$-d+8 $


Reorder the polynomial $-d+8$ alphabetically from left to right, starting with the highest order term

$8-d$