Question

5^x-2×3^2x-3=135 find the value of x

Answer 1

Answer:

5^x- 2 × 3^2x-3=1135

25x-2×18x-3=135

25x-36x-3=135

-11x-3=135

-11x = 135+3

-x = 138÷11

-x=12.58

x= -12.58

Answer 2

$5^{x - 2} \times 3^{2x - 3} = 135 = 5^{x - 2} \times 3^{2x - 3} = 5 \times {3}^{3} \\ = x - 2 = 1 \: and \: 2x - 3 = 3 \\ = x = 3$