Answer:
[tex]hours=1.5[/tex]
Step-by-step explanation:
Make an equation. Note key words like "plus", "per" and "total"
[tex]130+56h=214[/tex]
where [tex]h[/tex] is the total hours worked. Solve for [tex]h[/tex]:
Subtract 130 from both sides and simplify
[tex]130-130+56h=214-130\\56h=214-130\\56h=84[/tex]
Divide both sides by 56 to isolate the variable
[tex]\frac{56h}{56} =\frac{84}{56}\\\\h=\frac{84}{56} \\\\h=\frac{3}{2} \\\\h=1.5[/tex]
The plumber worked for an hour and a half.
Done.
