Remember: a^2 + b^2 = c^2
1
64 + 49 = 113
√113 = 
2
100 - 25 = 75
square root of 75 = 5
The solution is 60x5 (with expression) (not sure so maby you should check other people's question first then compare to mine)
When x=5 ,
5(x+2) - 4 = 5(5+2) - 4 = 5(7) - 4 = 35 - 4 = <em>31</em>