Question

5 simplify the expression: $-1.3f + 0.4j - 12 - 1 + 2.9f$

Explanation:

Step1: Combine like terms for \( f \)

We have \( -1.3f \) and \( 2.9f \). To combine them, we add their coefficients: \( -1.3 + 2.9 = 1.6 \). So, the combined term for \( f \) is \( 1.6f \).

Step2: Combine constant terms

The constant terms are \( -12 \) and \( -1 \). Adding them together: \( -12 + (-1) = -13 \).

Step3: Write the simplified expression

The term with \( j \) remains as \( 0.4j \) since there are no other like terms for \( j \). Combining all the simplified terms, we get \( 1.6f + 0.4j - 13 \).

Answer:

\( 1.6f + 0.4j - 13 \)