0.02x - 4 - 0.01x - 2 = - 6.3

X = - 30

First combine like terms (0.02x - 0.01x = 0.01x) (-4 - 2 = - 6)

0.01x - 6 = - 6.3

Then add 6 (-6 + 6 = 0) (-6.3 + 6 = - 0.3)

0.01x = - 0.3

Then divide by 0.01 to find what x is alone (0.01x : 0.01 = x) (-0.3 : 0.01 = - 30)

x=-30