Evaluate the expression 2x + 10 + 6x - 4 when x = 3
Help!

30

Explanation: Here, we have the expression 2x + 10 + 6x - 4 and we want to evaluate the expression when x is equal to 3.

To evaluate an expression, we simply plug the value

of the variable into the expression and solve.

So here, since x is equal to 3

we have 2(3) + 10 + 6(3) - 4.

Notice that I used parentheses when substituting 3 in for x.

That's always a good habit to get into.

Now we can use our order of operations from here.

2(3) is equal to 6 and 6(3) is equal to 18.

So we have 6 + 10 + 18 - 4.

6 + 10 is equal to 16.

So we have 16 + 18 - 4.

16 + 18 gives us 34.

So we have 34 - 4 which is 30.

So the value of our expression when x is equal to 3 is 30.

the correct answer is 5 6 and 7