Solve 4x - 7 = 2x + 3
Show all work

x = 5

Step-by-step explanation:

Step 1:

4x - 7 = 2x + 3           Equation

Step 2:

2x - 7 = 3           Subtract 2x on both sides

Step 3:

2x = 10         Add 7 on both sides

Step 4:

x = 10 ÷ 2        Divide

x = 5

Hope This Helps :)

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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