Question

Majorie evaluated the expression 3x+2 for x=5 as shown: 3x+2=35+2=37 What was Majorie's mistake? What is the correct value of 3x+2 for x=5?

Answer 1

Answer:

17

Step-by-step explanation:

Given:

The given expression is.

$3x+2$

We need to solve the given expression for $x = 5$.

Solution:

Rewrite the expression as.

$f(x)=3x+2$

Substitute x = 5 in above expression.

$f(5)=3(5)+2$

$f(5)=3\times 5 + 2$

Now we multiply 5 with 3.

$f(5)=15+2$

Now we add right side terms.

$f(5)=17$

Therefore, The correct value of given expression is $3x+2=17$ for $x=5$.