help plase

-3(5 + -1d) = 2d + 10

simplify the expression inside the parentheses

-3(5 - d) = 2d + 10

now remove the parentheses

-15 + 3d = 2d + 10

add 15 to both sides of the equation

3d = 2d + 25

subtract 2d from both sides of the equation

d = 25

To double check, substitute 25 for d in the original equation:

-3(5 + -1(25)) = 2(25) + 10

-3(5 - 25) = 2(25) + 10

-3(-20) = 2(25) + 10

60 = 50 + 10