5d*2+-7d*2+7-1+-1=

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Solution for 5d*2+-7d*2+7-1+-1= equation:


Simplifying
5d * 2 + -7d * 2 + 7 + -1 + -1 = 0

Reorder the terms for easier multiplication:
5 * 2d + -7d * 2 + 7 + -1 + -1 = 0

Multiply 5 * 2
10d + -7d * 2 + 7 + -1 + -1 = 0

Reorder the terms for easier multiplication:
10d + -7 * 2d + 7 + -1 + -1 = 0

Multiply -7 * 2
10d + -14d + 7 + -1 + -1 = 0

Reorder the terms:
7 + -1 + -1 + 10d + -14d = 0

Combine like terms: 7 + -1 = 6
6 + -1 + 10d + -14d = 0

Combine like terms: 6 + -1 = 5
5 + 10d + -14d = 0

Combine like terms: 10d + -14d = -4d
5 + -4d = 0

Solving
5 + -4d = 0

Solving for variable 'd'.

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

Add '-5' to each side of the equation.
5 + -5 + -4d = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -4d = 0 + -5
-4d = 0 + -5

Combine like terms: 0 + -5 = -5
-4d = -5

Divide each side by '-4'.
d = 1.25

Simplifying
d = 1.25

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