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22 votes
Find the solution to the system of equations,

x + y + z = 18
y+ z = 11
z = 8
A. x = 7, y = 3, z = 8
B. x = 7, y = 11, z = 3
C. x = 18, y = 3, z = 8
D. x = 18, y = 11, z = 8

User Ken Mc
by
4.0k points

2 Answers

8 votes

Answer:

D should be it

Explanation:

User Charles Xavier
by
3.7k points
8 votes
A is the answer :)
Since we are given z = 8, finding y is simple.
By replacing the z in y + z = 11, we can see that y = 3
After finding these two, x can be found
User Ssanj
by
3.7k points