Question

verify by subsitution that the root of 3+2x=9 is x=3​

Answer 1

Answer:

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

3 + 2(3) = 9

3 + 6 = 9

9 = 9

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

Answer 2

Answer:4

Step-by-step explanation:3+2x=9

2x=3-9

2x=6

X=6-2

X=4