Question

-2x+5a-3b. if x = 1, a = 2 and b = 3 then value of the algebraic expression is ___​

Answer 1

Answer:

-1

Step-by-step explanation:

= -2(1)+5(2)-3(3)

= -2+10-9

= 8-9

=-1

I HOPE ITS CORRECT

Answer 2

$\huge{\rm{\red{\underline{Question :}}}}$

$- 2x + 5a - 3b$

$\huge{\rm{\red{\underline{To \: \: find :}}}}$

Value of the equation with known identities.

$\huge{\rm{\red{\underline{Solution :}}}}$

Given :

Values of variables x , a and b = 1, 2, 3 respectively

Now, solving the given equation -2x + 5a - 3b by putting known values :

$\implies - 2(1) + 5(2) - 3(3)$

$\implies - 2+( 10 - 9)$

$\implies - 2 + 1$

$\implies - 1$

Therefore, value of the algebraic expression = -1