If 18 is added to a number, the result 42 less than twice the number

Find the #?

x + 18 = 2x - 42

18 + 42 = 2x - x

60 = x

Your number is: 60

Dear Coach,

Break it down...
If 18 is added to a number, (x+18)
the result (=)
42 less than twice the number? (2x-42)
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Step by step...
x+18=2x-42

Since 2x contains the variable to solve for, move it to the left-hand side of the equation by subtracting 2x from both sides.
x+18-2x=-42

Since x and -2x are like terms, add -2x to x to get -x.
-x+18=-42

Since 18 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 18 from both sides.
-x=-18-42

Subtract 42 from -18 to get -60.
-x=-60

Multiply each term in the equation by -1.
-x*-1=-60*-1

Multiply -x by -1 to get x.
x=-60*-1

Multiply -60 by -1 to get 60.
x=60
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Thanks for the interesting question!
and You're welcome

Let x be the number.

Then form the equation:

x + 18 = 2 x - 42

solve

42 + 18 = 60 = 2x - x = x

so x = 60