Tina wrote the equations 3x - y = 9 and 4x + y + 5, what can tina conclude about the solution to this system of equations?
a. (–3, 2) is a solution to the system of linear equations.
b. (–2, 3) is a solution to the system of linear equations.
c. (2, –3) is a solution to the system of linear equations.
d. (3, –2) is a solution to the system of linear equations.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.