Question

if(-3,4) is a solution of 3x-4y= 5b then value of b is

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Answer 1

Step-by-step explanation:

Given equation :

3x - 4y = 5b

Where,

x = (-3)

y = 4

Substitution of the given values :

$\sf : \implies \: 3x - 4y = 5b \\ \sf : \implies \: 3( - 3) - 4(4) = 5b \\ \sf : \implies \: - 9 - 16 = 5b \\ \sf : \implies \: - 25 = 5b \\ \sf : \implies \: b = \frac{ - 25}{5} \\ \sf : \implies \: b = - 5 \: ans.$