Question

Is 3 a solution to 7x-2=4x-15

Answer 1

Given: The equation below

`7x-2=4x-15`

To Determine: The value of x

Solution

Collect like terms

`\begin{gathered} 7x-2=4x-15 \\ 7x-4x=-15+2 \end{gathered}`
`\begin{gathered} 3x=-13 \\ Divide\text{ both sides by 3} \\ (3x)/(3)=-(13)/(3) \\ x=-(13)/(3) \end{gathered}`

It can be observed that the solution of the given equation is NOT 3