30a-20/5=2
30a-4=2
-4+4=0
2+4=6
30a=6
30/30=1
6/30=1/5 or 0.2
a=0.2
w=3 e =4
2w+2e+(40w)-29+4e
2w+40w=42w
2e+4e=6e
42w+6e-29
u subtract 78.2 from 78.2 and 178 because ur doing the inverse propert of addition
then u cross out 78.2 because its 0
178-78.2=99.8
then u divide 0.5 by 0.5 to isolate x and divide 0.5 friom 178
to get the the answer for x , which is 356
