Please help me with this

1

In the equation x + 8.2 = –12.7, 8.2 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation?

Subtract –12.7 from both sides. The solution is 20.9.

Add –12.7 to both sides. The solution is –4.5.

Subtract 8.2 from both sides. The solution is –20.9.

Add 8.2 to both sides. The solution is –4.5.

Step-by-step explanation:

1. 6.1. 6.1 mph

1.5. 9.15. 6.1 mph

2. 18.3. 9.15 m

2.5. 45.75. 18.3

Time = distance/speed

Step-by-step explanation:

(1.5)*(6.1) = 9.15

(2)*(9.15) = 18.3. 18.3/2=9.15 mph

(2.5)(18.3)=45.75. 45.75/2.5=18.3

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x