Unit of Addition
Algebra Help: Section 2.5
Learn to apply the unit of addition.
The Unit of Addition is
the quantity whose coefficients are added.
In the example, 3x - 4x + 7x = 6x,
the unit of addition is x. Obtain the result, 6x,
by uniting the coefficients of x into one number.
Dissimilar terms may often be added, by making some common letter or letters the unit of addition.
1. What is the sum of ax, bx and cx?
OPERATION:
axbxcx____________ (a+b+c)x
ANALYSIS -
We make the common letter, x, the
unit of addition.
Therefore a times x, b times x, and c times x,
must equal x multipled by the
sum of a plus b plus c.
Since
a, b, and c are dissimilar,
to indicate
their addition, enclose the sum in parenthesis.
Write the coefficient as x, and the sum within parenthesis.
32
32
Help with Algebra Homework
Free tutorials provide math help for math problems. Tutorials start with algebra 1. Algebra tutorials include word problems related to algebra topics, as they're introduced. See the menu, above for algebra math equations, and explanation, by section.
Windows algebra games, designed to help with classwork, coming soon!
Windows games, in progress, work with this set of free tutorials, modified
from the public domain text book titled,
New Elementary Algebra
containing the rudiments of the science for schools and academies.
By Horation N Robinison, LL. D. Ivison, Blakeman & Company, Publishers, New York and Chicago.
