Q. 1.21 - An Introduction to General, Organic, and Biological Chemistry

Question

Solve each of the following for $a$ :

a. $4a+4=40$.

b. $\frac{a}{6}=7$.

Step-by-Step Solution

Answer

a. The value of $a$is $9$.

b. The value of $a$ is $42$.

Part (a) step 1: Given Information

We need to find value of $a$.

Part (a) step 2: Simplify

$$\begin{gathered} 4a+4=40 \\ 4a=40-4=36 \\ 4a=36 \\ a=\frac{36}{4} \\ a=9 \end{gathered}$$

Part (b) step 1: Given Information

We need to find value of $a$.

Part (b) step 2: Simplify

$$\begin{gathered} \frac{a}{6}=7 \\ a=7\times 6 \\ a=42 \end{gathered}$$