Answer:
if you mean 18.1-x=-07 the answer is 25.1
and If you mean 18.1 - x = -0.7 the answer is 18.8
Explanation:
in answer 1
explain. 18.1 - x =-07
18.1-x+07= -07+07
25.1-x=0
x= 25.1 #
in answer 2
explain. 18.1 -x =-0.7
18.1 - x +0.7=-0.7+0.7
18.8-x=0
x= 18.8 #