Respuesta :

Answer:

4.5

Step-by-step explanation:

2*4.5=9+7=16

The value of r in the given linear equation 2r + 7 =16 is 9/2.

What is linear equation in one variable?

A linear equation in one variable is an equation which has maximum of one variable of order 1. It is of the form  ax + b =0, where x is the variable.

Solving Linear Equation in one variable

For solving an equation having one variable, the following steps are followed:

  • Step1: Using LCM, clear the fractions if any.
  • Step2: Simplify both sides of the equation.
  • Step 3: Isolate the variable.

According to the given question

We have, a linear equation in variable r.

2r +7 =16

⇒ 2r + 7 -7 = 16 -7

⇒ 2r = 9

⇒ r  = 9/2

Hence, the value of r is 9/2 for the given linear equation 2r + 7 = 16.

Learn more about Linear equation  in one variable here:

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