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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
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32 votes
32 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 SandWyrm
by
2.4k points

2 Answers

20 votes
20 votes

Answer:

D should be it

Explanation:

User Jonathanzh
by
3.5k points
11 votes
11 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 Jenean
by
2.9k points
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