1/4x - 5 = 10 -x
Add 5 to both sides:
1/4x = 15 -x
Add x to both sides:
1 1/4x = 15
Divide both sides by 1 1/4:
x = 12
(1/4)x - 5 = 10 - x
x/4 - 5 = 10 - x
(x/4)(4) - 5(4) = 10(4) - 4x
x - 20 = 40 - 4x
x + 4x = 40 + 20
5x = 60
x = 60/5
