can you tell me how to do this problem. Simplify thank you.
The 4x and the -12x can be combined together with the result of -8x
If z = 2
then we can replace z with 2 in the expression:
-8ZX + 4ZY + 20 Z
-8(2)X + 4(2)Y + 20 (2)
-16X + 8Y + 40
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