Solve the following equation: $9x-45=4x$9x−45=4x
Solve the following equation: $-x-7=7$−x−7=7
Solve the following equation:
$3x-8=x$3x−8=x
Solve the following equation: $2x+5=x$2x+5=x
solve linear equations, including those with algebraic fractions and variables on both sides