D(0)=7-2(0)

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Solution for D(0)=7-2(0) equation: 


Simplifying
D(0) = 7 + -2(0)

Reorder the terms for easier multiplication:
0D = 7 + -2(0)

Anything times zero is zero.
0D = 7 + -2(0)

Multiply -2 * 0
0 = 7 + 0

Anything times zero is zero.
0 = 7 + 0

Combine like terms: 7 + 0 = 7
0 = 7

Solving
0 = 7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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