(2d+9)-2(5d+4)=14

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Solution for (2d+9)-2(5d+4)=14 equation:


Simplifying
(2d + 9) + -2(5d + 4) = 14

Reorder the terms:
(9 + 2d) + -2(5d + 4) = 14

Remove parenthesis around (9 + 2d)
9 + 2d + -2(5d + 4) = 14

Reorder the terms:
9 + 2d + -2(4 + 5d) = 14
9 + 2d + (4 * -2 + 5d * -2) = 14
9 + 2d + (-8 + -10d) = 14

Reorder the terms:
9 + -8 + 2d + -10d = 14

Combine like terms: 9 + -8 = 1
1 + 2d + -10d = 14

Combine like terms: 2d + -10d = -8d
1 + -8d = 14

Solving
1 + -8d = 14

Solving for variable 'd'.

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

Add '-1' to each side of the equation.
1 + -1 + -8d = 14 + -1

Combine like terms: 1 + -1 = 0
0 + -8d = 14 + -1
-8d = 14 + -1

Combine like terms: 14 + -1 = 13
-8d = 13

Divide each side by '-8'.
d = -1.625

Simplifying
d = -1.625

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