Question

Evaluate the following algebraic expressions for x = 1, y = -1, z = 2, a = -2, b= 1, c = -2: ax + by + cz.​

Answer 1

Answer:

Answer = -7

Step-by-step explanation:

ax + by + cz = ?

Given, x = 1, y = -1, z = 2, a = -2, b= 1, c = -2

ax = -2 * 1 = -2

by = 1 * -1 = -1

cz = -2 * 2 = -4

Now,

ax + by + cz = (-2) + (-1) + (-4) = - 2 - 1 - 4 = -7