.75(4+d)=13.5

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Solution for .75(4+d)=13.5 equation: 


Simplifying
0.75(4 + d) = 13.5
(4 * 0.75 + d * 0.75) = 13.5
(3 + 0.75d) = 13.5

Solving
3 + 0.75d = 13.5

Solving for variable 'd'.

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

Add '-3' to each side of the equation.
3 + -3 + 0.75d = 13.5 + -3

Combine like terms: 3 + -3 = 0
0 + 0.75d = 13.5 + -3
0.75d = 13.5 + -3

Combine like terms: 13.5 + -3 = 10.5
0.75d = 10.5

Divide each side by '0.75'.
d = 14

Simplifying
d = 14

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