Answered

IDNLearn.com is your trusted platform for finding reliable answers. Join our interactive Q&A platform to receive prompt and accurate responses from experienced professionals in various fields.

Angie was given the system of equations. Angie’s work is shown in the table.
7x+y=−12
7x+4y=−6
Where did Angie make an error? Justify your answer.


Step 1; because she should have multiplied the second equation by -1.


Step 2; because she should have eliminated the y-value.


Step 3; because she used substitution incorrectly.


Step 4; because the solution is (2,-26).

Angie Was Given The System Of Equations Angies Work Is Shown In The Table 7xy12 7x4y6 Where Did Angie Make An Error Justify Your Answer Step 1 Because She Shoul class=

Sagot :

Angie made an error because she used substitution incorrectly in step 3.

System of equation

7x + y =−12

7x + 4y = −6

subtract equation(i) from (ii) to eliminate x

Therefore,

3y = 6

y = 6 / 3

y = 2

Therefore,

7x + 2 = -12

subtract 2 from both sides of the equation

7x = -12 - 2

7x = - 14

x = - 14 / 7

x = -2

(-2, 2)

Therefore, Angie use substitution incorrectly in step 3.

learn more on system of equation here: https://brainly.com/question/1818941

We appreciate your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. IDNLearn.com is dedicated to providing accurate answers. Thank you for visiting, and see you next time for more solutions.