d Problem3: When A = 5x + 4 and B = 9x – 6 what is the value of B-A? | Job Exam Rare Mathematics (JEMrare) - Solved MCQs
Advertisements

Problem3: When A = 5x + 4 and B = 9x – 6 what is the value of B-A?

Problem 3 : When A = 5x + 4 and B = 9x – 6 what is the value of B-A?

Solution:

This is simple algebra subtraction problem!

We solve it;

Putting value of B and A,

B-A=(9x-6)-(5x+4)

On left hand side write first bracket term as it is! Take minus sign inside the second bracket terms !

i-e

B-A=9x-6-5x-4

Re-arranging ‘x’ terms and non ‘x’ terms;

B-A=9x–5x-6-4

Subtracting ‘x’ terms and adding non-‘x’ terms (Because both non ‘x’ terms have same  -ve sign we will actually add them instead!

So, we get;

=4x-10

 

You may submit a MCQ or maths problem with solution tips here in the comment box below! If you could not solve anyone, you may submit a MCQ or maths problem without solution as well. We will try our level best to solve it for you!

Your email address will not be published.

You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>