# Python solution easy to understand

• ``````class Solution(object):
def solveEquation(self, equation):
"""
:type equation: str
:rtype: str
"""
def convert(left):
val_left = 0
coef_left = 0
i = 0
while i < len(left):
temp = ''
if left[i]=='+' or left[i]=='-':
temp+=left[i]
i+=1
#count = 0
#i+=1
while i<len(left) and left[i]!='+' and left[i]!='-' and left[i]!='x':
temp+=left[i]
i+=1
if i==len(left):
val_left += int(temp)
break
elif left[i]=='x':
if len(temp)==0:
coef_left +=1
elif temp[-1]=='+' or temp[-1]=='-':
coef_left += int(temp[-1]+'1')
else:
coef_left += int(temp)
i+=1
else:
val_left+=int(temp)
return coef_left,val_left
left,right = equation.split('=')
coef_left,val_left=convert(left)
coef_right,val_right=convert(right)
if coef_left == coef_right:
if val_left == val_right:
return "Infinite solutions"
else:
return "No solution"
else:
return "x="+str((val_right-val_left)/(coef_left-coef_right))``````

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