Question

Please answer this question

Answer 1

Step-by-step explanation:

$3 {}^{x + 3} \times 3 {}^{4x - 10} = 3 {}^{3x + 7} \\ 5x - 7 = 3x + 7 \\ 2x = 14 \\ x = 7$

Answer 2

Answer:

3^(x+3).9^(2x-5)=3^(3x+7)

=> 3^(x+3).3^2(2x-5)=3^(3x+7)

=> 3^(x+3).3^(4x-10)=3^(3x+7)

=> 3^(x+3+4x-10)=3^(3x+7)

=> 3^(5x-7)=3^(3x+7)

=> 5x-7=3x+7

=> 5x-3x=7+7

=> 2x=14

=> x=14/2

=> x=7