Question

A system of two equations is shown below:

Equation C: a = 2b + 7
Equation D: a = 5b − 3

What value of a can be substituted into equation D to solve the system of equations?

2b
5b
5b − 3
2b + 7

Answer 1

i think its 2b +7

Answer 2

yes right u are. :)

Answer 3

can you help me with this?
Which set of steps shows the solution to the equation 4y = −12?

y = −12 − 4; y = 8
y = −12 ÷ (−4); y = 3
y = −12 − (−4); y = −8
y = −12 ÷ 4; y = −3

Answer 4

y = −12 ÷ 4; y = −3, u just divide by 4 on both sides.

Answer 5

so B?

Answer 6

D

Answer 7

ohh ok

Answer 8

:)

Answer 9

thx!!

Answer 10

anything else?

Answer 11

no but thx.

Answer 12

okay. i gotta go sleep than, it's already 3am.

Answer 13

wow its 5:29pm here

Answer 14

different countries different time zones. :)

Answer 15

yup

Answer 16

:) bye. tc