3.5+d=7.5

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Solution for 3.5+d=7.5 equation: 


Simplifying
3.5 + d = 7.5

Solving
3.5 + d = 7.5

Solving for variable 'd'.

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

Add '-3.5' to each side of the equation.
3.5 + -3.5 + d = 7.5 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + d = 7.5 + -3.5
d = 7.5 + -3.5

Combine like terms: 7.5 + -3.5 = 4
d = 4

Simplifying
d = 4

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