Question

-7 = -1 + x/3, solve and explain with an algebraic property

Answer 1

-7= -1+ x/3
⇒ -1+ x/3= -7 (switch side)
⇒ x/3= -7+ 1
⇒ x/3= -6
⇒ x= -6* 3
⇒ x= -18

Final answer: x= -18~

Answer 2

`-7 = -1 + (x)/(3)`

Multiply both sides by 3 :


`-3*1 + 3* (x)/(3) = -3*7`

Refine:


`x - 3 = -21`


`x = - 21 + 3`


`x = - 18`

hope this helps!.