Lawrence bought 2/3 pound of roast beef. He used 3/4 of it to make a sandwich. How much roast beef did Lawrence use for his sand
2 answers:
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isolating a:
(a + b + c)/3 = z
(a + b + c) = 3z
<h2>a = 3z - b - c</h2>
Answer:
x = 10
Step-by-step explanation:
First, distribute:
Next, subtract from both sides:
(multiply by 2 to get common denominator,
)
Next, subtract from both sides:
(multiply by 2 to get common denominator,
)
⇒
Next, multiply both sides by 10:
FInally, divide both sides by -1:
x = 10