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:

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

=> $-3+x = 20/-5$

=> $- 3 + x = -4$

=> $x = -4 + 3$

=> $x = -1$