Question

7a=2-b
7a=5-b
use the method of substitution to solve the system of linear equation. Please HELP!!!!!

Answer 1

Well, if both 2-b and 5-b are equal to 7a, then they're equal to each other, right?

Answer 2

right

Answer 3

its asking me if there is a solution..if so what is the ordered pair

Answer 4

2-b=5-b

add a b to both sides
2=5

what does this mean?

Answer 5

substitution?

Answer 6

This is a substitution. Some people call it a comparison.

Answer 7

there in this equation there is infinite number of solutions right?

Answer 8

wrong

2=5
2 cannot equal 5 thus meaning?

Answer 9

there is no solution

Answer 10

right


if the final solution was
2=2 this would mean there are infinitely many solutions

a=2 means there's one solution and you would need to find the other coordinate

5=2 means there are no solutions simply due to the fact that it is an incorrect statement

Answer 11

ty