The answer is below hope it helps.
2x + 3y- z = 13 3x - 4y+z = -2 x + 2y + 2z= 21
2 answers:
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Answer:
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
using the rule of logarithms
x = n ⇒ x =
(x + 9) + 3 = 3 ( subtract 3 from both sides )
(x + 9) = 0 , then
x + 9 = = 1 ( subtract 9 from both sides )
x = - 8