2 Answers

Miss · Answer 1 · 2021-07-28T12:38:01+0000

Step-by-step explanation:
Remember we can do pretty much anything we like to an equation as long as we do the same to both sides.
Subtract
c
from both sides:
a
b
+
c
−
c
=
d
−
c

∴
a
b
=
d
−
c

Divide both sides by
b

a
b
b
=
d
−
c
b

∴
a
=
d
−
c
b

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