Question

(7/8)^-3(7/8)^11=(7/8)^x Find the value of x

Answer 1

I HOPE THIS MIGHT HELP YOU MATE
MARK ME AS BRAINLIST

Answer 2

Use the property
${a}^{x} \times {a}^{y} = {a}^{x + y}$

$( \frac{7}{8} )^{ - 3} \times ( \frac{7}{8} )^{11} = {( \frac{7}{8} )}^{x}$

$( \frac{7}{8} )^{ - 3 + 11} = {( \frac{7}{8} )}^{x}$

$( \frac{7}{8} )^{ 8} = {( \frac{7}{8} )}^{x}$

$x = 8$


Thus, x = 8.