Solve 8a-b(7+a): Evaluating with a=2 and b=1/3

Question

Solve the following expression:

$8a-b(7+a)$

$a=2,b=\frac{1}{3}$

00:00 Set up and solve

00:03 Substitute appropriate values according to the given data and solve

00:16 Always solve parentheses first

00:20 Continue solving according to proper order of operations

00:26 And this is the solution to the question

Note that we have two unknowns, a and b, and we are also given values for them,

Therefore, let's start by substituting these values in the equation instead of the unknowns:

8*2-1/3*(7+2)=

When there is a number before parentheses, it's like having a multiplication sign between them.

Let's start solving according to the order of operations, beginning with the parentheses:

8*2-1/3*(9)=

Now let's continue with multiplication and division:

16-9/3=
16-3=

‎‎‎‎‎‎‎13

And that's the solution!

$13$