4(9-d)=6+2(15-2d)

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Solution for 4(9-d)=6+2(15-2d) equation: 


Simplifying
4(9 + -1d) = 6 + 2(15 + -2d)
(9 * 4 + -1d * 4) = 6 + 2(15 + -2d)
(36 + -4d) = 6 + 2(15 + -2d)
36 + -4d = 6 + (15 * 2 + -2d * 2)
36 + -4d = 6 + (30 + -4d)

Combine like terms: 6 + 30 = 36
36 + -4d = 36 + -4d

Add '-36' to each side of the equation.
36 + -36 + -4d = 36 + -36 + -4d

Combine like terms: 36 + -36 = 0
0 + -4d = 36 + -36 + -4d
-4d = 36 + -36 + -4d

Combine like terms: 36 + -36 = 0
-4d = 0 + -4d
-4d = -4d

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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