Question

Algebraic Quantities -- 2x, 3y, 8a, 11.
known as Algebraic quantities.
Here, 2x means 2 x x, 3y = 3 x y, 8a = 8 x
= 11 x b.
Algebraic Expression - When two
algebraic quantities are connected by plus or m
we get Algebraic Expression. For example.
3x - 5y + 1, .x2 - y2 and a² - 3b + 7 etc. are
expressions.
To Find the Value of Given Algebraic Expre
Example 1. If a = - 4 and b = 1, find th
7a - 3b.​

Answer 1

Step-by-step explanation:

a=-4 b=1

then 7a -3b

=7×a =7×(-4) =-28

=3×b=3×1=3

7a-3b= (-28)-3= -31