Answer:
Step-by-step explanation:
X-7=13
move -7 to the right side of the equation, change the sign from negative to positive when you move it
x-7+7=13+7
x=13+7
x=20
Answer:
45 minutes
Step-by-step explanation:
Assume task completed in total x hours

So q will take 45 more minutes
Sin ( theta ) = opposite / hypotenuse
sin ( 37° ) = 13 / x