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Nataliya [291]
2 years ago
13

Solve the system of equations: x + y + z = 5; x - y + 3z = 9; and z = 6. PLS PLS HELP ME

Mathematics
1 answer:
Sonja [21]2 years ago
7 0
X + y + 6 = 5
x - y + 18 = 9

2x + 24 = 14 minus 24
2x = -10 divided by 2
x = -5

-5 + y + 6 = 5
y = 4
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