Question

Let x represent the unknown value, then write an algebraic expression for: double a quantity increased by nine

Answer 1

2(x + 9)

Step-by-step explanation:

Let x represent the unknown value.

Double a quantity increased 9 means;

*We'll multiply the quantity by 2

*Increased by signifies addition

*Quantity means we'll put the expression after it in brackets

Let's go ahead and write the required algebraic expression;

`2(x+9)`