D+140=300

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Solution for D+140=300 equation: 


Simplifying
D + 140 = 300

Reorder the terms:
140 + D = 300

Solving
140 + D = 300

Solving for variable 'D'.

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

Add '-140' to each side of the equation.
140 + -140 + D = 300 + -140

Combine like terms: 140 + -140 = 0
0 + D = 300 + -140
D = 300 + -140

Combine like terms: 300 + -140 = 160
D = 160

Simplifying
D = 160

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