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It is simply as stated in the question. Without information about a or b, the expression cannot be simplified nor evaluated.

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3a+b

a+a+a+b

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3a

Q: What is 3a plus b?

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This expression can be factored. ab + 3a + b2 + 3b = a(b + 3) + b(b + 3) = (a + b)(b + 3)

3a+ax+3b+bx = 3(a+b)+(a+b)x = (a+b)(3+x)

3ab + 3ac + 2b2 + 2bc = 3a(b + c) + 2b(b + c) = (3a + 2b)(b + c)

-2a plus 3b

Thenx = (c - b) / 3a

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p=b+3a+c p-3a-c=b+3a-3a+c-c p-3a-c=b b=p-3a-c

1

The given expression can be simplified to: 3b-a

If a + b = 6, what is the value of 3a + 3b?

This expression can be factored. ab + 3a + b2 + 3b = a(b + 3) + b(b + 3) = (a + b)(b + 3)

3a+ax+3b+bx = 3(a+b)+(a+b)x = (a+b)(3+x)

7a-2b

a(b+3)+b(b+3)

= a + b - 2

3ab + 3ac + 2b2 + 2bc = 3a(b + c) + 2b(b + c) = (3a + 2b)(b + c)

-2a plus 3b

a + b + c = 180 b = 3a c = 5a Substituting the values of b and c into the first equation. a + 3a + 5a = 180 or 9a = 180 so that a = 20 then b = 3a = 3*20 = 60 and c = 5a = 5*20 = 100