Question

Simplify the following expression:
x - 4y + 5z - 3x - y + 2z = ?

2x - 5y + 7z
-2x - 5y - 7z
-2x - 5y + 7z
-2x -5y + 3z
2. . Evaluate the following expression using the values given:
Find 5x - 3y - z if x = -2, y = 2, and z = -3

-19
19
13
-13

Answer 1

-2x - 5y + 7z is the correct answer.

Answer 2

x - 4y + 5z - 3x - y + 2z = ?

Go on a collection safari:

x(1 - 3) + y(-4 - 1) + z(5+2)

Answer 3

5*(-2) - 3*2 - (-3) = -10-6+3=-16+3=-13