Tim says: "Four times my age 6 years ago is the same as 2 times my age in 2 years." How old is Tim now?

14

Step-by-step explanation:

Let x = Tim's age now

Convert the statement into an equation.

Four times my age 6 years ago = 2 times my age in 2 years.

4 * (x - 6) = 2 * (x + 2)

Simplify the equation by multiplying out the brackets.

4x - 24 = 2x + 4

Put the equation in the form ax = B, so that all the terms of x are on one side and the integers are on the other.

Minus 2x from both sides.

4x - 24 - 2x = 2x + 4 - 2x

2x - 24 = 4

Add 24 to both sides.

2x - 24 + 24 = 4 + 24

2x = 28

Put the equation in the form x = b to find the value of x.

Divide both sides by 2.

2x/2 = 28/2

x = 14

Tim is 14.

Substitute x back into the original equation to check it's right.

4 * (x - 6) = 2 * (x + 2)

4 * (x - 6) = 4 * (14 - 6) = 4 * (8) = 32

2 * (x + 2) = 2 * (14 + 2) = 2 * (16) = 32

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.