Please help right away.
1 answer:
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<em>Greetings from Brasil...</em>
isolating a:
(a + b + c)/3 = z
(a + b + c) = 3z
<h2>a = 3z - b - c</h2>
Answer:
x= 3 +, 3 -
Step-by-step explanation:
You use the quadratic formula to get x=
Then you simplify and get the answers x= 3 +, 3 -