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Tanzania [10]
3 years ago
8

Simplify the expression a+2c-5b-c+a-b

Mathematics
1 answer:
romanna [79]3 years ago
6 0
A + 2c - 5b - c + a - b
We're gonna have to combine like terms.

(a+a)+(-5b-b)+(2c-c)

2a-6b+c This is your answer
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Of three digits are randomly selected what is the probabilit tht there is at least one 7
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4 years ago
Find two numbers, if Their sum is −7 and their difference is 14
Mademuasel [1]
Let
a------------> first number
b------------> second number

we know that
a+b=-7--------> a=-7-b----------> equation 1
a-b=14--------> equation 2

<span>I substitute 1  in 2
</span>
(-7-b)-b=14-------------> -7-b-b=14----------> -7-2b=14-------> 2b=-7-14
2b=-21---------> b=-10.5
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the answer is
the two numbers are 
a=3.5
and
b=-10.5
6 0
4 years ago
Read 2 more answers
A shirt cost $18.99 with a 6.5% sales tax. What is the final cost?
velikii [3]

Answer:

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Step-by-step explanation:

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roblem: Report Error Let $f(x)=(x^2+6x+9)^{50}-4x+3$, and let $r_1,r_2,\ldots,r_{100}$ be the roots of $f(x)$. Compute $(r_1+3)^
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