Math  /  Algebra

QuestionSolve: 4z4.4=3.64 z-4.4=3.6 A) z=0.3z=0.3
B z=0.3z=-0.3
C z=2z=-2
D z=2z=2

Studdy Solution

STEP 1

What is this asking? We need to find the value of zz that makes the equation 4z4.4=3.64z - 4.4 = 3.6 true! Watch out! Be super careful with those decimal points and positive/negative signs!
One little slip-up, and *poof* – wrong answer!

STEP 2

1. Isolate the term with zz.
2. Solve for zz.

STEP 3

We want to get that zz all alone on one side of the equation.
First, let's tackle that 4.4-4.4.
We can add 4.44.4 to *both* sides of the equation.
Remember, what we do to one side, we *must* do to the other to keep things balanced.
This is like adding to zero! 4z4.4+4.4=3.6+4.44z - 4.4 + 4.4 = 3.6 + 4.4

STEP 4

Now, simplify! 4.4+4.4-4.4 + 4.4 becomes 00, which is exactly what we wanted! 4z=3.6+4.44z = 3.6 + 4.4 4z=84z = \textbf{8}

STEP 5

Now, we have 4z=84z = 8.
We want just one zz, not four of them!
So, we'll divide *both* sides by **4**.
This is like dividing to one! 4z4=84 \frac{4z}{4} = \frac{8}{4}

STEP 6

z=2 z = \textbf{2} Boom! We found our **answer**!

STEP 7

The value of zz that satisfies the equation is z=2z = 2, which corresponds to answer choice D.

Was this helpful?

Studdy solves anything!

banner

Start learning now

Download Studdy AI Tutor now. Learn with ease and get all help you need to be successful at school.

ParentsInfluencer programContactPolicyTerms
TwitterInstagramFacebookTikTokDiscord