Question

SIMPLIFYING EXPRESSIONS Simplify the expression by combining like terms. $$ 1.3 t-2.1 t $$

Short answer

The simplified form of the expression is \(-0.8t\).

Step-by-step solution

Identify Like Terms

The like terms in this expression are 1.3t and -2.1t. Both terms have the variable \(t\).

Combine Like Terms

To combine the like terms, subtract the coefficient of the second term from the coefficient of the first term. The mathematical operation between the terms is subtraction. It should be noted that the term -2.1t is a negative term and hence during subtraction becomes an addition of 2.1t. So, the operation is \(1.3t + 2.1t\).

Perform the Addition

Now, add the coefficients 1.3 and 2.1. This ends up with \(-0.8t\)