If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5x-72=-4x-9
We move all terms to the left:
5x-72-(-4x-9)=0
We get rid of parentheses
5x+4x+9-72=0
We add all the numbers together, and all the variables
9x-63=0
We move all terms containing x to the left, all other terms to the right
9x=63
x=63/9
x=7
| 1°=8x-26 | | x/20=845/65 | | x/20=845/65 | | 5x-2=-8x+37 | | 5x-2=-8x+37 | | -3+4k=33 | | 5x-2=-8x+37 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | -3+4k=33 | | 12+x/3=20 | | 12+x/3=20 | | 12+x/3=20 | | 12+x/3=20 | | 15/42=8/y | | 15/42=8/y | | 15/42=8/y | | 15/42=8/y | | 15/42=8/y | | 15/42=8/y | | -3=−11-y/11 | | z+77=100 | | 7x-20=4x+35 |