Question

Verify by substitution that step by step the root of 3+2x=9 is x=3 ​

Answer 1

Answer:

substituting x = 3

that is 3+2×3

=3+6

=9

LHS=RHS

therefore x=3

Answer 2

Answer:

Step-by-step explanation:

Substituting x = 3 into 3 + 2x = 9,

3 + 2(3) = 9

3 + 6 = 9

9 = 9

∴, x = 3 is the root( as L.H.S = R.H.S)