Question

if x is 9
a) 2x+9
b) 4x+18

Answer 1

Answer:

Step-by-step explanation:

x=9,

a. 2x+9

=2*9+9

=27

b. 4x+18

=4*9+18

=36+18

=54

Answer 2

AnsweR :-

• $\rm \: 2x + 9 = 27\\ \\ \rm4x + 18 = 54$

GiveN :-

• $\rm \: x = 9$

SolutioN :-

$\star \rm \: 2x + 9 \: \\ \\ \mapsto \rm 2 \times 9 + 9 \\ \\ \mapsto \rm 18 + 9 \\ \\ \mapsto \: \rm \: 27 \\ \\ \boxed{ \red{ \rm \mapsto \: 2x + 9 = 27}} \\ \\ \star \rm \: 4x + 18 \\ \\ \mapsto \rm \: 4 \times 9 + 18 \\ \\ \mapsto \rm \: 36 + 18 \\ \\ \boxed{ \red{ \rm \mapsto \: 4x + 18 = 54}}$