3.124 * 10^-4
since your decimal is coming forward you need the exponent to be negative
I believe the 4th one
an=145+an-1 and a1=20
Answer:
x = 2
Step-by-step explanation:
Step 1: Write out equation
2 - 4x = 3x - 12
Step 2: Add 4x on both sides
2 - 4x + 4x = 3x + 4x - 12
2 = 7x - 12
Step 3: Add 12 on both sides
2 + 12 = 7x - 12 + 12
14 = 7x
Step 4: Divide both sides by 7
14/7 = 7x/7
2 = x
Step 5: Rewrite
x = 2
Let's separate this absolute value equation into two different equations.
x + 1 = 3.
Subtract 1 from each side
x = 2.
x + 1 = -3
Subtract 1 from each side
x = -4
The two solutions are x = 2 and x = -4
