Question

PLEASE..Help me figure out if there is …..
A. If there is one solution? (type and ordered pair)
B. If there are infinitely many solutions?
C. Or if there are no solutions.

Use the method of substitution to solve the system of linear equations.
6a=7-b
6a=4-b

Answer 1

subtract the two equations...what do you get?

Answer 2

i am really new to this so...
6a=3b?

Answer 3

i am unsure of the steps.

Answer 4

6a=7-b
6a=4-b

what is 6a - 6a?

Answer 5

0?

Answer 6

right. and what's 7 - 4?

Answer 7

3

Answer 8

and -b - (-b)?

Answer 9

0?

Answer 10

yes

Answer 11

so..

6a=7-b
6a=4-b
=====
0 = 3 + 0

is this true? is 0 = 3+0?

Answer 12

yes

Answer 13

what is 3 + 0?

Answer 14

3

Answer 15

so is 0 =3??

Answer 16

so that would be false right?

Answer 17

yes!!

Answer 18

that means there are no solutions

Answer 19

Thank you!!!!!!
I like when people do step by step and help me understand! Instead of giving the answers. I learn better for tests :)

Answer 20

welcome :D and i like people who would rather listen to steps rather than the answers

Answer 21

:)