Math, asked by rishabh1290, 3 months ago

find the value of a=6 7a-5​

Answers

Answered by cool5257boy
0

Answer:

7a6−8a5+9a4)÷a3=a37a6−8a5+9a4

=a3a3(7a3−8a2+9a)

=7a3−8a2+9a

Answered by sharmaaashutosh169
2

Concept

Substitution is a method of solving systems of equations that involves first solving for one variable and then utilizing that result to determine the other.

Given

The expression 7a-5​.

To find

The value of given expression at a =6.

Solution

We have top substitute the value a =6.

7(6) - 5= 42 - 5

           = 37

Hence the value of expression is 37.

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