You are given the system of equations to solve by the elimination method, which is an INCORRECT step that will NOT produce a
system with the same solution?
x + 2y = 7
2x - 5y = 5
es ))
add 5 times the first equation and 2 times the second equation
multiply the first equation by 2 and subtract the second equation
multiply the first equation by -2 and add the second equation
multiply x by 2 in the first equation and subtract the second equation

Question

alexlesleyfuller alexlesleyfuller

11-05-2020
Mathematics

contestada

You are given the system of equations to solve by the elimination method, which is an INCORRECT step that will NOT produce a
system with the same solution?
x + 2y = 7
2x - 5y = 5
es ))
add 5 times the first equation and 2 times the second equation
multiply the first equation by 2 and subtract the second equation
multiply the first equation by -2 and add the second equation
multiply x by 2 in the first equation and subtract the second equation

Respuesta :

Otras preguntas

Solve x2 = 144. 72 12 ±12 −12

Ten times the square of a non-zero number is equal t fifty times the number. what is the number?

Given the function f(x) = 5^x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3. Part A: Find the average rate of change of each section. (

To decide what to eat at a restaurant, Frank closes his eyes, places his finger on the menu, and orders whichever dish he places his finger on. He chooses one s

Which of the following is true about a writer’s diction? a. When the writer uses colloquial language, the diction is informal. b. When the writer uses simple

What is the best definition of an archetype? a. a character with many different character traits b. an animal that acts as the main character of a story c. a

Given that triangle MON is equilateral find m

75% of people say they shop online to save time, if 900 people were surveyed how many gave this anwser

The area of a triangle is 45.5 cm2 and the base is 10 cm. What is the height of the triangle?

what are the three main things that a plant needs to survive?

JeanaShupp JeanaShupp · Answer 1 · 2020-05-19T10:05:35+02:00

Answer: multiply x by 2 in the first equation and subtract the second equation

Step-by-step explanation:

To solve a system of linear equations by elimination method , our first step is to make its (either x or y) coefficient same.

For that we multiply a number to both sides of the equation not to only one term.

So by checking all the given options it is pretty clear that the last option is not applicable for elimination method because in this 2 is multiplied to only one term, which proceeds to loose the balance of the equation.

Thus , an INCORRECT step that will NOT produce a system with the same solution is "multiply x by 2 in the first equation and subtract the second equation ".