Question

Find the value of x in x + y = 9 and x - y = 2.5.553.5-5.5

Answer 1

Step 1

Given; Find the value of x in x + y = 9 and x - y = 2.

Step 2

Using the elimination method.

`\begin{gathered} x+y=9 \\ + \\ x-y=2 \\ --------- \\ 2x\text{ +0=11} \end{gathered}`

Hence,

`\begin{gathered} 2x=11 \\ x=(11)/(2) \\ x=5.5 \end{gathered}`

Answer;

`x=5.5`