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
It is: 19b+7b = 26b
7b + 15= -34 First, 7b + 15 - 15 = -34 - 15 So, 7b = -49 Then, 7b/7 = -49/7 And finally, b = -7 So b = -7
7b-7 = 0
(-a-7b+5)4ab
2a+2a-7b+7b =4a
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
7b-10 = -3
cosits 7B lol:-)
9
No. 7b - 2b = 5b
6a + (7b - 4a - 8b) = (6a - 4a) + (7b - 8b) = 2a - b
100a2 - 49b2 is the difference of two perfect squares. Therefore, it is equal to the sum times the difference of the roots: (10a + 7b)(10a - 7b)
If b = 5, 7b = 35
-58
If you mean: 7b+b+b then it is 9b simplified
The GCF is 7b