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In the expression 5x + 3, what is the variable?
x
In the expression 7y − 10, what is the constant?
-10
Identify the variable(s) in 4ab + 9.
a,b
Identify the constant in 6m − 2n + 8.
8
Write an algebraic expression for: “The sum of a number and 12.”
x + 12
Write an algebraic expression for: “Five times a number decreased by 4.”
5x − 4
How many terms are there in the expression 3x + 2y − 5?
3
Translate into an algebraic expression: “Twice a number plus 7.”
2x + 7
Translate into an algebraic expression: “The difference of a number and 9.”
x − 9
Translate into an algebraic expression: “Three more than four times a number.”
4x + 3
