2d+7e-5f+4d-4e+2f=9

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Solution for 2d+7e-5f+4d-4e+2f=9 equation:


Simplifying
2d + 7e + -5f + 4d + -4e + 2f = 9

Reorder the terms:
2d + 4d + 7e + -4e + -5f + 2f = 9

Combine like terms: 2d + 4d = 6d
6d + 7e + -4e + -5f + 2f = 9

Combine like terms: 7e + -4e = 3e
6d + 3e + -5f + 2f = 9

Combine like terms: -5f + 2f = -3f
6d + 3e + -3f = 9

Solving
6d + 3e + -3f = 9

Solving for variable 'd'.

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

Add '-3e' to each side of the equation.
6d + 3e + -3e + -3f = 9 + -3e

Combine like terms: 3e + -3e = 0
6d + 0 + -3f = 9 + -3e
6d + -3f = 9 + -3e

Add '3f' to each side of the equation.
6d + -3f + 3f = 9 + -3e + 3f

Combine like terms: -3f + 3f = 0
6d + 0 = 9 + -3e + 3f
6d = 9 + -3e + 3f

Divide each side by '6'.
d = 1.5 + -0.5e + 0.5f

Simplifying
d = 1.5 + -0.5e + 0.5f

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