The value of d is 53.9
Further explanation:
In order to solve the equations involving one variable, the variable has to be isolated on one side of the equation.
Given
[tex]\frac{d}{7} + \frac{3}{10} = 8\\Subtraction\ property\ for\ equality\\\frac{d}{7} + \frac{3}{10} -\frac{3}{10} = 8-\frac{3}{10}\\\frac{d}{7} = \frac{80-3}{10}\\ \frac{d}{7} = \frac{77}{10}\\ \frac{d}{7}*7 = \frac{77}{10}*7\\d = \frac{539}{10}\\ d = 53.9[/tex]
The value of d is 53.9
Keywords: Linear Equation, value of variable
Learn more about linear equations at:
- brainly.com/question/2115716
- brainly.com/question/4644511
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