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Q: What is the value of 3a plus 2b when a equals 6 and b equals 5?

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3a + 2b = (3*6) + (2*5) = 18 + 10 = 283a+2b= (3x6)+(2x5)= 18+10=28

3a + 2b = c (find a in terms of b and c)3a +2b -2b = c - 2b3a = c - 2b3a/3 = (c - 2b)/3a = (c - 2b)/3In order to find the value of a, you can give any values to b, and c (except a zero value).

8a+2b

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

It is an expression that can be simplified to: 3a-2b+c

Collect the terms in a, then the terms in b, getting 6a - 3a + 2b + 5b which simplifies to 3a + 7b. Gettit?

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

Gathering like terms together, this is equal to 5a + 3b + 7c.

It is an algabraic expession without knowing whether or not 2b and 3a are plus or minus

1

5a + 4b - 3a =(5a - 3a) + 4b =2a + 4b =2 (a + 2b)

12

-2a plus 3b

Change the order to make it more obvious: 3a - a + 2b + 4b 2a + 6b or 2 (a + 3b).

3a + 2b = 4If b = 7, then3a + 2(7) = 43a + 14 = 4Subtract 14 from each side:3a = -10Divide each side by 3:a = -10/3

7a-2b

3a - 2b

= a + b - 2

What is the answers to -7 ( a + b - 5 ) + 8 ( -3a +2b ) + b ( 7 + 3 )

6b+5a-4b+3a= ? Rearrange it as 5a+3a+6b-4b = 8a+2b

ok, let's see: (3a-2a) + (2b+5b) +(-c +3c) = a + 7b +2c I think that's right.

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

Yes.

3a2b is the simplest formImproved Answer:-3a x 2b = 6ab when simplified

3a + 2b is an expression in algebra. If you make 3a + 2b equal to something then you can find the values of "a" and "b" Lets say you make 3a + 2b equal to 23 3a + 2b = 23 Now find "a" and "b" to make this equation true... 3(5) + 2(4) = 23 15 + 8 = 23 23 = 23 Correct So in this case a=5 and b=4