Question

Question 3(iv)

Identify the operations used (addition, subtraction, division, multiplication) in forming the following expressions and tell how the expressions have been formed:

7m, - 7m +3, - 7m - 3

Answer 1

$\begin{array}{ccc}\text{Expression}& \text{Operation}& \text{Reason}\\ 7m& \text{Multiplication}& \text{It is formed by multiplying m and 7.}\\ -7m+3& \text{Multiplication and addition}& \text{It is formed by multiplying}\\ & & \text{-7 and m and adding 3 to the result.}\\ -7m-3& \text{Multiplication and subtraction}& \text{It is formed by multiplying}\\ & & \text{-7 and m and subtracting 3 from the result.}\end{array}$