how do you solve multi-step equations

Equations

bobs monthly phone bill is made u of a $10 fee plus $0.05 per minute. bob’s phone bill for july was $22 . write an equation to model the situation , using m to represent the number of minutes. solve the equation to determine the number of phone minutes bob used in july?

Equations

bobs monthly phone bill is made u of a $10 fee plus $0.05 per minute. bob’s phone bill for july was $22 . write an equation to model the situation , using m to represent the number of minutes. solve the equation to determine the number of phone minutes bob used in july?