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Q: 2-3b equals 7b plus 12

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It is an equation and the value of b is 3

-58

-12

6a + (7b - 4a - 8b) = (6a - 4a) + (7b - 8b) = 2a - b

7b + 16 = 5b + 247b - 5b = 24 - 162b = 8b = 4

2a + 7b = -13a - 7b = -5The system of equations can be solved by elimination:2a + 3a = -65a = -6a = -6/5substitute the value of a in any of the two original equations to find the value of b:2(-6/5) + 7b = -1-12/5 + 1 = -7b-7/5 = -7bb= 1/5

If: 6b+21 = 7b-21 Then: 6b-7b = -21-21 And: -b = -42 So: b = 42

-7 7b + 15 = (-34) 7b = (-34) - 15 7b =(-49) b = (-49) / 7 b= (-7)

It is: 19b+7b = 26b

3b -2 =7 b+4

It is: 7b+10 simplified

(-a-7b+5)4ab

7b + 15= -34 First, 7b + 15 - 15 = -34 - 15 So, 7b = -49 Then, 7b/7 = -49/7 And finally, b = -7 So b = -7

11a+7b-(3b-2a)

If b = -1.5 then -4.5 -2 = -10.5 + 4, which is true.

b^2 - 7b + 12 = b^2 - 4b - 3b + 12 = b(b -4) -3(b - 4) = (b - 3)(b - 4)

5 - 7b + 6 = -24 is a linear equation in one variable. 11 - 7b = -24 Adding -11 to both sides 11 - 7b + (-11) = -24 + (-11) 11 - 7b - 11 = -24 - 11 -7b = -35 Dividing both sides by -7 -7b/(-7) = -35/(-7) b = 5

9a + 7b *remember to look and understand the letters!*

8b

7b divide by 12 will equal 4.2 if b = 7.2

6a+7b

27

It is: 7b+4b-1b = 10b when simplified

3b - 7b - 2 = 26 then , -2 - 4b = 26 then , 4b = 26 then you do , -4 / 26 which equals 7

26 = 3b - 2 - 7b 28 = -4b b = -7