Question

What are 2 ways to solve 20=-5(-3+x)

Answer 1

1) 20 = -5(-3+x)
20/-5 = -3 + x
-4 = -3 + x
-4 + 3 = x
x = -1
2)20 = -5(-3 + x)
20 = 15 - 5x
20 - 15 = - 5x
5 = -5x
5/-5 = x
x = -1

Answer 2

1) First way:


`-5(-3+x) = 20`

=>
`15 - 5x = 20`

=>
`-5x = 20 -15`

=>
`-5x = 5`

=>
`x = 5/-5`

=>
`x = -1`


2) Second way:


`-5(-3+x)=20`

=>
`-3+x = 20/-5`

=>
`- 3 + x = -4`

=>
`x = -4 + 3`

=>
`x = -1`