help with 2 math questions please...?

Question

solve.How the hell am i supposed to solve this!!my head hurts!! :`(

1.3B - 13 + 4B= 7B +1
2.5 -3(w+4) = -7

Answer 1

Part One ;
3B - 13 + 4B= 7B +1
3B +4B - 7B = 1 + 13
0B = 14 , Can not be solve....

Part Two
5 -3(w+4) = -7
-3x - 12 = - 7 - 5
-3x = -7 - 5 + 12
-3x = -12 + 12
-3x = 0
x = 0/-3
x = 0

Good Luck.

Answer 2

Identify the unknowns:

1.3B - 13 + 4B= 7B +1
1.3B - 13 + 4B -1 = 7B
1.3B - 14 + 4B= 7B
- 14 = 7B -1.3B -- 4B
- 14 = 2∙7B
B = -14 / 1∙7
B = - 8∙235 294 118


2∙5 -3(w+4) = -7
-3(w+4) = -7 - 2∙5
-3(w+4) = - 9∙5
-3w - 12 = - 9∙5
-3w = - 9∙5 +12
-3w = 2∙5
w = 2∙5/-3
w = - 5/6
w = - 0∙8333333...

Answer 3

#1: 3B - 13 + 4B= 7B +1
7B-13=7B+1
-13=1
But -13≠1. Therefore this problem has no solution.

#2: 5 -3(w+4) = -7
5-3w-12=-7
-7-3w=-7
-3w=0
w=0

Answer 4

3B-13+4B=7B+1
3B+4B-7B=1+13
0B=14
B=14/0 => UNDEFINED VALUE (infinity)

5-3(w+4)=-7
5-3w-12=-7
5-12+7=3w
w=0/3 = 0

Answer 5

1.cannot be solved
2.5-3w-12=-7
-3w=0
w=0