# How would you write this as an algebraic expression? 49 increased by by twice a number.

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You need to focus on the key words in the problem.

Increased = go up, add.

Twice = two times, double.

A number = an unknown number which can be represented by a variable, usually *x.*

Now that you know the meaning of the key words you can read the problem differently. "49 add by two times *x"*

When you change your words into operations (+ - x /) you get 49+2*x* (Remember that when a known number is right next to a variable it means to multiply, times).

49 increased (added) by two-times a number (N):

49 + 2 x N = ?

A number could be x in algebra.

So, twice the number is 2x in algebra.

49 is 49.

49 increased by twice the number implies 49 plus 2x or 49+2x.

Therefore,49+2x is as good as 49 increased by twice the number in algebra.

Increase means to add.

Twice means two times.

A number can be a variable.

Therefore, you have 2x + 49

2x + 49

49+2x

49 increased by twice a number

Twice a number = 2x

increase that by 49

2x + 49

49+2x

49+ 2x...you can use any variable you would like if one is not given to represent two times a number but please dont use the multiplication symbol between 2 and the variable....you're in 11th grade!