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CAHSEE Math Videos 210 videos

CAHSEE Math 1.1 Statistics, Data, and Probability I
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Statistics, Data, and Probability I: Drill Set 1, Problem 1. What is the mean yearly salary?

CAHSEE Math 1.2 Statistics, Data, and Probability I
198 Views

Statistics, Data, and Probability I: Drill Set 1, Problem 2. What is the median length of these writing utensils?

CAHSEE Math 1.3 Statistics, Data, and Probability I
209 Views

CAHSEE Math Statistics, Data, and Probability I: Drill Set 1, Problem 3. The mode of the number of days in each month for a single non-leap year is...

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CAHSEE Math 5.3 Algebra and Functions 2033 Views


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Description:

CAHSEE Math: Algebra and Functions Drill 5, Problem 3. Solve the equation.

Language:
English Language

Transcript

00:03

Here's your shmoop du jour, brought to you by Two-Step Equations.

00:07

Or, for any dogs taking this test...Four-Step Equations.

00:12

Solve the equation -10x + 23 = 353 for x.

00:18

And here are your potential options...

00:21

Okay, so we've got a classic Two-Step equation here.

00:24

Hopefully we don't have... two left hands.

00:28

To solve, we need to get x all by itself.

00:31

And when we say "by itself," we mean no numbers, no negative symbols... no nothing.

00:36

With that in mind, we first subtract 23 from both sides:

00:39

And we get -10x = 330.

00:41

Next, divide 330 by -10 to leave x alone.

00:45

x = -33.

00:46

And... that's it. Our answer is B.

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