40-2(d+5)=20

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Solution for 40-2(d+5)=20 equation: 


Simplifying
40 + -2(d + 5) = 20

Reorder the terms:
40 + -2(5 + d) = 20
40 + (5 * -2 + d * -2) = 20
40 + (-10 + -2d) = 20

Combine like terms: 40 + -10 = 30
30 + -2d = 20

Solving
30 + -2d = 20

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add '-30' to each side of the equation.
30 + -30 + -2d = 20 + -30

Combine like terms: 30 + -30 = 0
0 + -2d = 20 + -30
-2d = 20 + -30

Combine like terms: 20 + -30 = -10
-2d = -10

Divide each side by '-2'.
d = 5

Simplifying
d = 5

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