Question

(7)^3÷(49)^2×343=7^(?-2)​

Answer 1

Answer:

4

Step-by-step explanation:

$7 {}^{3} \div 49 {}^{2} \times 343 = 7 {}^{x - 2}$

$\frac{7 {}^{3} }{7 {}^{4} } \times 343 = 7 {}^{x - 2}$

$49 = 7 {}^{x - 2}$

$7 {}^{2} = 7 {}^{x - 2}$

$2 = x - 2$

$x = 2 + 2$

$x = 4$