Question

1. -3x-8=10 solve for x
2. (2.3×10^-3)(3×10^8) give answer in scientific notation

Answer 1

1. X=-6

2. 690000

Explanation:

1. -3x-8=10

Isolate x on one side of the equation.

-3x-8+8=10+8

Add.

-3x=18

Divide by -3 from both sides.

-3x/-3=18/-3

Solve.

18/-3=-6

X=-6

X=-6, which is our answer.

2. (2.3×10^-3)(3×10^8)

(2.3×10^-3)(3×10^8)=690000

690000, which is our answer.

Answer 2

1. -3x-8=10
-3x = 18
18 divided by -3 is -6
Answer is -6 for the first one

2. 300000000 times .0023 is
690000
So answer for 2 is 6.9 * 10^5