the first step would to get rid of the coefficients, in my case i moved the -2x to the other side and added it to the 8x to get 10x
The correct first step is to add 2x to both sides. Then, add 3 to both sides. You will then get 8<10x. Finally, divide both sides by 10. You get x>8/10. You can simplify that to x>4/5.
5678 divided by 45.7 is 124.245...
1/3(x+4)=20
1/3x+4/3=20
1/3x=56/3
x= (56/3) / (1/3)
x= 56