# How do you solve for a in #5 + ab = c#?

##### 3 Answers

#### Explanation:

#"isolate "ab" by subtracting 5 from both sides"#

#cancel(5)cancel(-5)+ab=c-5#

#ab=c-5#

#"divide both sides by "b#

#(a cancel(b))/cancel(b)=(c-5)/brArra=(c-5)/b#

#### Explanation:

As there are 3 variables in this equation, i.e

Therefore, the value of

Now, as per the question, we have

Hence the value of

#color(blue)(5+ab=c#

To, find a, we need to isolate it in the left hand side of the equation.

We can do that by adding or subtracting or multiplying or dividing the same number on both sides of the equation

So, subtract

Divide both sides by

Hope that helps....