How do you solve 22= - 2s + 4?

Mar 5, 2018

$s = 9$

Explanation:

$22 = - 2 s + 4$

$22 \textcolor{red}{- 4} = - 2 s \textcolor{red}{\cancel{\textcolor{b l a c k}{+ 4} - 4}}$

18/color(red)(2)=-color(red)((cancel(2)color(black)(s))/cancel(2)

color(red)(-)9 = color(red)(cancel( -color(black)(-))color(black)(s)

$s = - 9$

We can prove this by substituting the pronumeral for it's given value in the equation.

$22 = - 2 \times - 9 + 4$

$22 = 18 + 4$