Evaluate the expression for z = 0.3. Write your answer as a decimal or whole number. –2 + 7z = _____

Substitute z in expression: Substitute the value of z into the expression. Expression: –2 + 7z Substitute 0.3 for z in –2 + 7z. Expression after substitution: –2 + 7(0.3)Multiply 7 by 0.3: Multiply 7 by 0.3. Calculation: 7 * 0.3 = 2.1Add to -2: Add the result of the multiplication to -2. Calculation: –2 + 2.1 = 0.1

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Evaluate the expression for $z = 0.3$ . $\newline$ Write your answer as a decimal or whole number. $\newline$ $–2 + 7z =$ _____

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Math Problems

Algebra 1

Evaluate variable expressions involving rational numbers

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Q. Evaluate the expression for

z = 0.3

\newline

Write your answer as a decimal or whole number.

\newline

–2 + 7z =

_____

Substitute $z$ in expression: Substitute the value of $z$ into the expression. $\newline$ Expression: $–2 + 7z$ $\newline$ Substitute $0.3$ for $z$ in $–2 + 7z$ . $\newline$ Expression after substitution: $–2 + 7(0.3)$
Multiply $7$ by $0.3$ : Multiply $7$ by $0.3$ . $\newline$ Calculation: $7 \times 0.3 = 2.1$
Add to $-2$ : Add the result of the multiplication to $-2$ . $\newline$ Calculation: $–2 + 2.1 = 0.1$