Question

The expression x + 3 is in how many variable are

Answer 1

Answer:

answer is 1 variable............

Answer 2

Answer:

One variable in the expression x + 3.

Explanation:

Given that, x + 3

First, we know what is variable.

• So, a variable in mathematics is a sign and placeholder for a variable quantity or another mathematical object.

• A variable can specifically represent a number, a vector, a matrix, a function, its argument, a set, or one of its elements.

• Any qualities, quantity, or number that can be gauged or tallied qualifies as a variable. A data item is another name for a variable.

• Examples of variables include age, sex, company income and expenses, country of birth, capital expenditures, class grades, eye color, and vehicle kind.

So, from the question, we have, x +3 in which 'x' is a variable.

Hence, there is one variable in the expression x +3.

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