Respuesta :

Answer: X will be -20 + 3/20f

The value of x is -7 if the equation is 3/4(x+21)=10 1/2 which is a linear equation in one variable.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The equation is:

3/4(x+21) = 10 1/2

The equation can be written as:

3/4(x+21) = 21/2

Cross multiplication:

6(x + 21) = 84

x + 21 = 84/6

x + 21 = 14

x = 14 - 21

x = -7

Thus, the value of x is -7 if the equation is 3/4(x+21)=10 1/2 which is a linear equation in one variable.

Learn more about the linear equation here:

brainly.com/question/11897796

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