February 8, 2021

Chapters

## Solve the Systems of Equations by the Substitution Method

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## Exercise 1

## Exercise 2

## Exercise 3

## Exercise 4

## Exercise 5

## Exercise 6

## Solution of exercise 1

## Solution of exercise 2

Plugging the value of x in the first equation:

## Solution of exercise 3

Plugging the value fo x in the first equation:

Plugging the value of y in the second equation:

## Solution of exercise 4

Plugging the first equation in the second equation:

## Solution of exercise 5

Plugging the value of x in the second equation:

## Solution of exercise 6

Plugging the value of x in the second equation:

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