If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?
3x + 6y=9
2x - 10y=13
O A. x, in the second equation
O B. y, in the second equation
C. x, in the first equation
O D. y, in the first equation

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

answer: the correct answer is -32

step-by-step explanation:

48 / 6 = x

in this case, x will equal the amount of money in each card!

x therefore will be 8.

trent had $8 in each birthday card.