Write an algebraic expression for the word expression.
the sum of 9 and a number x

9 + x

Step-by-step explanation:

i think this is what you meant

Write each phrase as an algebraic expression. In Example 2, each algebraic expression consisted of one number, one operation and one variable.

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Algebraic Expressions With Example Problems and Interactive Exercises.

PhraseExpression

the sum of nine and a number x9 + x

Step-by-step explanation:

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y=mx+b is the final answer!   : )

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true