Question 50456
10=-30 -c/5
10+30=-30+30 - (c/5)
40=-c/5
(5)(40) = (5)(-c/5)
200=-c
200/-1=-c/-1
-200=c
.
Check by plugging (-200=c) back into the original equation.
10=-30 -(-200)/5

10=-30 -(-200)/5
10=-30+40
10=10 [checks out]
.
.

a/5-2=-7
a/5-2+2=-7+2

a/5=-5
a/5=-5
(5)(a/5)=(5)(-5)
a=-25
.
Check by plugging (a=-25) back into the original equation.
a/5-2=-7
(-25)/5-2=-7
-5-2=-7
-7=-7 [Checks out]