-13d-21=-2(d+7)-10

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Solution for -13d-21=-2(d+7)-10 equation:


Simplifying
-13d + -21 = -2(d + 7) + -10

Reorder the terms:
-21 + -13d = -2(d + 7) + -10

Reorder the terms:
-21 + -13d = -2(7 + d) + -10
-21 + -13d = (7 * -2 + d * -2) + -10
-21 + -13d = (-14 + -2d) + -10

Reorder the terms:
-21 + -13d = -14 + -10 + -2d

Combine like terms: -14 + -10 = -24
-21 + -13d = -24 + -2d

Solving
-21 + -13d = -24 + -2d

Solving for variable 'd'.

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

Add '2d' to each side of the equation.
-21 + -13d + 2d = -24 + -2d + 2d

Combine like terms: -13d + 2d = -11d
-21 + -11d = -24 + -2d + 2d

Combine like terms: -2d + 2d = 0
-21 + -11d = -24 + 0
-21 + -11d = -24

Add '21' to each side of the equation.
-21 + 21 + -11d = -24 + 21

Combine like terms: -21 + 21 = 0
0 + -11d = -24 + 21
-11d = -24 + 21

Combine like terms: -24 + 21 = -3
-11d = -3

Divide each side by '-11'.
d = 0.2727272727

Simplifying
d = 0.2727272727

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