Question

Verify by substituting the given value, x=4 is the root of 3x - 5 = 7

Answer 1

$x = 4 \\ 3x - 5 \\ x = 4 \\ 3(4) - 5 = 12 - 5 = 7 \\ so \:value \: of \: equation \: at \: x = 4 \: is \: 7$

Answer 2

3×4-5 = 7..
Solving LHS..
We get 7..
And hence it is equal to RHS..
therefore LHS is equal to RHS..