Question

Find the value of the expression (3x – 12) - (xy- 10) for x = 3 and y = 6.

Answer 1

Answer:

-11

Step-by-step explanation:

(3x - 12) - (xy - 10) = ?

Substitute your values in for x and y.

[3(3) - 12] - [(3)(6) - 10] = ?

Solve. (Remember, two variables next to each other implies multiplication!)

(9 - 12) - (18 - 10) = ?

-3 - 8 = -11

Answer 2

Answer:

Step-by-step explanation:

(3x – 12) - (xy- 10) for x = 3 and y = 6

= {3(3) - 12} - {3(6) - 10}

= (9 - 12) - (18 - 10)

= -3 - 8

= -11