Question

please help me solve this i will mark as brainliest​

Answer 1

Answer:

Here's your Answer.

Step-by-step explanation:

x - 1 = 2x - 8

x - 2x = -8 + 1

-x = -7

Therefore x= 7

Please mark me as the brainliest answer.

Answer 2

${\huge{\red{\underline{\mathcal{\red{Answer}}}}}}$

${\sf{\large{\left( \frac{a}{b} \right)}^{x - 1} \: = {\left( \frac{b}{a} \right) }^{2x - 8} } }$

${\sf{\large {{ \left( \frac{a}{b} \right)}^{x - 1} = {{\left( \frac{a}{b} \right)}^{ - (2x - 8)} }}}}$

${\sf{\large {{ \left( \frac{a}{b} \right)}^{x - 1} = {{\left( \frac{a}{b} \right)}^{ ( 8 - 2x)} }}}}$

Bases are same. Equating the powers

${\sf{x - 1 = 8 - 2x}}$

${\sf{x + 2x = 8 + 1}}$

${\sf{3x = 9}}$

${\sf{ x = \cancel \frac{9}{3} }}$

${\sf{x = 3}}$

${\mathcal{\bold{\red{Thankyou}}}}$