Solve ax + by = −c for x.

x equals the quantity negative b times y minus c all over a
x equals the quantity negative b times y plus c all over a
x equals the quantity b times y plus c all over a
x equals the quantity b times y minus c all over a

  x equals the quantity negative B times y minus C all over A

Step-by-step explanation:

Subtract By and divide by A:

  Ax + By = -C . . . . starting equation

  Ax = -By -C . . . . . subtract By from both sides

  x = (-By -C)/A . . . . divide both sides by A

-362

step-by-step explanation:

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

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363