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Basic Operations Videos 58 videos

Operations with Rational Expressions
8687 Views

It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.

Numbers and Operations: Elementary Number Theory
606 Views

Jack and Jill went up the hill to fetch a pail of water. But what happened when they got up there? They’ve been gone an awfully long time…

SAT Math 7.3 Algebra and Functions
318 Views

SAT Math 7.3 Algebra and Functions

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Word Problems with Addition and Subtraction 4464 Views


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Description:

Sometimes, we just want fewer y's...or more x's. That's why it's great to know how to add and subtract variables. In real life, though, we try to avoid racking up more "exes." It's just a policy.

Language:
English Language

Transcript

00:00

Thank you We see word problems with addition and subtraction

00:06

at no extra charge Allah shmoop a goose This gloopy

00:11

and his even fatter brother gargantua Psg loop like chocolate

00:16

We mean really really like chocolate Their parents may not

00:19

know how to tell their sons No but if they're

00:22

there well they always make sure to overfeed their boys

00:26

Equally way to go Parents of the year Well the

00:29

ge loops explain to their little angels that they had

00:33

four boxes all containing the same number of chocolates to

00:37

augustus They gave one full box of chocolate plus five

00:40

individual pieces Who gargantua ce They gave three boxes of

00:45

chocolate plus one individual thief get both boys were given

00:48

the same total number of chocolates How many chocolates are

00:51

in each box Well we can start by writing this

00:54

as an equation where b is what we're looking for

00:57

A number of chocolates in a box All right wilby

01:00

plus five that's a goose This equals three v plus

01:03

one that's Gargantua Well we want to get all the

01:05

boxes on one side of the equation to make this

01:08

problem easier to solve We could do whatever we want

01:10

Toe one side of the equation as long as we

01:12

also do it to the other side So let's subtract

01:16

a b from both sides Now we have the equation

01:18

Five equals b plus one next week and subtract one

01:22

for meat side and we get four equals to be

01:26

all we have to do at this point it's by

01:28

both sides of the equation by two and we see

01:30

that b equals two In other words there are only

01:34

two chocolates in each box Kind of a letdown for 00:01:37.022 --> [endTime] the boys Thank heavens that oh

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