Solve the following to find the value of the variables.
5x-43=7.
The given equation is 5x-43=7
5x-43=7
5x-4=7×3
5x-4=21
5x=21+4
5x=25
x=255
x=5
Hence the value of xis5
Find the value of unknown variables by solving the given linear equation
4+K-7=2
3x-7=14
x+4=15.