80 more than twice a number is 10 What is the numberSolution

80 more than twice a number is -10. What is the number?

Solution

Let the number be \"x\"

Twice a nmuber = 2x

80 more than twice a number is -10:

80 +2x = -10

Subtract 80 from both sides:

80 + 2x -80 = -10 -80

2x = -90

Divide both sides by 2 to isolate x

x= -90/2 =-45

x=-45

Number is -45