d+d+d+d+e+e+e=

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Solution for d+d+d+d+e+e+e= equation:


Simplifying
d + d + d + d + e + e + e = 0

Combine like terms: d + d = 2d
2d + d + d + e + e + e = 0

Combine like terms: 2d + d = 3d
3d + d + e + e + e = 0

Combine like terms: 3d + d = 4d
4d + e + e + e = 0

Combine like terms: e + e = 2e
4d + 2e + e = 0

Combine like terms: 2e + e = 3e
4d + 3e = 0

Solving
4d + 3e = 0

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.
4d + 3e + -3e = 0 + -3e

Combine like terms: 3e + -3e = 0
4d + 0 = 0 + -3e
4d = 0 + -3e
Remove the zero:
4d = -3e

Divide each side by '4'.
d = -0.75e

Simplifying
d = -0.75e

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