Respuesta :

7=62-b collect the like terms
7-62=-b
-55=-b divide both sides by negative
55=b
Step 1- Subtract 62 from both sides 
7 - 62 = -b 
Step 2- Simplify 7 - 62 to -55
-55 = -b
Step 3- Multiply both sides by -1 
55 = b
Step 4- Switch sides
b = 55