Problem

Is $-34$ a solution of $x+15=-49 ?$

01:54

Problem 62 Hard Difficulty

What two numbers are a distance of 8 away from 4 on the number line?

Answer

12 and -4

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Precalculus

Algebra

Elementary and Intermediate Algebra

Chapter 2

Equations, Inequalities, and Problem Solving

Section 3

Applications of Percent

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Video Transcript

All right, So the question says what? Two members in distance off. Eight, away from four. Off the number line. What? Two numbers. Ah, and distance off. Eight away. Boom. Sure, all the number line. So let's do the number Line itself. All right? And there's our number. Line. Let's say all four is there. So there are two possible distance to the left. And to the right. So one the distance off. Aides to the right and EJ left. So 1234 by its 78 So 67 eight nine. Never. Because so that I missed Ralph. Then let's go to the other side. Two, three Life suits seven. Hey, let's see. This is three one sandal. Negative one negative too. Make it 23 naked to fall. All right, So the number two numbers, huh? This Leggett to fall and 12 So we can say crew members. Larry, they get too full. And that's not the only way in which you can find them. It was remember, it might be very onerous, especially if the differences are big. So what you need to do is to bed to say chest number is the cross tow for last eight Been sick and number is it wasthe through full minus eight. We love it. True possibilities. So the first possibility is four plus eight, which is 12. The second possibility is for my last eight. So when they when you, uh When there's a minus sign Indian, go to the other numbers the positive you subject each time that days and cause it to fish and the negative you subsequent they get even with power. So you say eight minus four, which is for then this for whether it's positive or negative is depended on the side off the bigger number. So even bigger numbers make it chief. It means that that's fine and I won't be negative. The final ends up always take the sign off the big mama.

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