x=7-2t
Move 7 to the other side. Sign changes from +7 to -7.
x-7=7-7-2t
x-7=-2t
Divide by -2 for both sides
x/-2-7/-2=-2t/-2
x/2+7/2=t
Answer: t= x/2+7/2 or t=7/2+x/2
28x10- 280 280 has same value has 28 tens
Positive add a positive plus positive equals positive neg plus neg equals neg
X - 10 = -18
x = -8
ur just solving for x
