-13d-21=-30d+70-10d

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Solution for -13d-21=-30d+70-10d equation:


Simplifying
-13d + -21 = -30d + 70 + -10d

Reorder the terms:
-21 + -13d = -30d + 70 + -10d

Reorder the terms:
-21 + -13d = 70 + -30d + -10d

Combine like terms: -30d + -10d = -40d
-21 + -13d = 70 + -40d

Solving
-21 + -13d = 70 + -40d

Solving for variable 'd'.

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

Add '40d' to each side of the equation.
-21 + -13d + 40d = 70 + -40d + 40d

Combine like terms: -13d + 40d = 27d
-21 + 27d = 70 + -40d + 40d

Combine like terms: -40d + 40d = 0
-21 + 27d = 70 + 0
-21 + 27d = 70

Add '21' to each side of the equation.
-21 + 21 + 27d = 70 + 21

Combine like terms: -21 + 21 = 0
0 + 27d = 70 + 21
27d = 70 + 21

Combine like terms: 70 + 21 = 91
27d = 91

Divide each side by '27'.
d = 3.37037037

Simplifying
d = 3.37037037

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